Beads commands operate on stale database without warning

All beads read operations should validate database is in sync with JSONL before proceeding.

**Current Behavior:**
- Commands can query/read from stale database
- Only mutation operations (like 'bd sync') check if JSONL is newer
- User gets incorrect results without realizing database is out of sync

**Expected Behavior:**
- All beads commands should have pre-flight check for database freshness
- If JSONL is newer than database, refuse to operate with error: "Database out of sync. Run 'bd import' first."
- Same safety check that exists for 'bd sync' should apply to ALL operations

**Impact:**
- Users make decisions based on incomplete/outdated data
- Silent failures lead to confusion (e.g., thinking issues don't exist when they do)
- Similar to running git commands on stale repo without being warned to pull

**Example:**
- Searched for bd-g9eu issue file: not found
- Issue exists in .beads/issues.jsonl (in git)
- Database was stale, but no warning was given
- Led to incorrect conclusion that issue was already closed/deleted

## Implementation Complete

**Phase 1: Created staleness check (cmd/bd/staleness.go)**
- ensureDatabaseFresh() function checks JSONL mtime vs last_import_time
- Returns error with helpful message when database is stale
- Auto-skips in daemon mode (daemon has auto-import)

**Phase 2: Added to all read commands**
- list, show, ready, status, stale, info, duplicates, validate
- Check runs before database queries in direct mode
- Daemon mode already protected via checkAndAutoImportIfStale()

**Phase 3: Code Review Findings**
See follow-up issues:
- bd-XXXX: Add warning when staleness check errors
- bd-YYYY: Improve CheckStaleness error handling
- bd-ZZZZ: Refactor redundant daemon checks (low priority)

**Testing:**
- Build successful: go build ./cmd/bd
- Binary works: ./bd --version
- Ready for manual testing

**Next Steps:**
1. Test with stale database scenario
2. Implement review improvements
3. Close issue when tests pass


Add comprehensive tests for show.go commands (show, update, edit, close)

Need to add tests for cmd/bd/show.go which contains show, update, edit, and close commands.

**Challenge**: The existing test patterns use rootCmd.SetArgs() and rootCmd.Execute(), but the global `store` variable needs to match what the commands use. Initial attempt created tests that failed with "no issue found" because the test's store instance wasn't the same as the command's store.

**Files to test**:
- show.go (contains showCmd, updateCmd, editCmd, closeCmd)

**Coverage needed**:
- show command (single issue, multiple issues, JSON output, with dependencies, with labels, with compaction)
- update command (status, priority, title, assignee, description, multiple fields, multiple issues)
- edit command (requires $EDITOR, may need mocking)
- close command (single issue, multiple issues, with reason, JSON output)

**Test approach**:
1. Study working test patterns in init_test.go, list_test.go, etc.
2. Ensure BEADS_NO_DAEMON=1 is set
3. Properly initialize database with bd init
4. Use the command's global store, not a separate instance
5. May need to reset global state between tests

**Success criteria**:
- All test functions pass
- Coverage for show.go increases significantly
- Tests follow existing patterns in cmd/bd/*_test.go


Refactor create_test.go to use shared DB setup

Convert TestCreate_* functions to use test suites with shared database setup.

Example transformation:
- Before: 10 separate tests, each with newTestStore()
- After: 1 TestCreate() with 10 t.Run() subtests sharing one DB

Estimated speedup: 10x faster (1 DB setup instead of 10)


Implement bd migrate command

Add bd migrate command to move issues between repos with filtering. Should support: filtering by status/priority/labels, dry-run mode, preserving dependencies, handling source_repo field updates.


Add MCP server functions for repair commands

Expose new repair commands via MCP server for agent access:

Functions to add:
- beads_repair_deps()
- beads_detect_pollution()
- beads_validate()
- beads_resolve_conflicts() (when implemented)

Update integrations/beads-mcp/src/beads_mcp/server.py

See repair_commands.md lines 803-884 for design.

Implemented all three MCP server functions:

1. **repair_deps(fix=False)** - Find/fix orphaned dependencies
2. **detect_pollution(clean=False)** - Detect/clean test issues
3. **validate(checks=None, fix_all=False)** - Run comprehensive health checks

Changes:
- Added abstract methods to BdClientBase
- Implemented in BdCliClient (CLI execution)
- Added NotImplementedError stubs in BdDaemonClient (falls back to CLI)
- Created wrapper functions in tools.py
- Registered @mcp.tool decorators in server.py

All commands tested and working with --no-daemon flag.


Test Agent Mail server failure scenarios

Verify graceful degradation across various failure modes.

Test Cases:
- Server never started
- Server crashes during operation
- Network partition (timeout)
- Server returns 500 error
- Invalid bearer token
- SQLite corruption

Acceptance Criteria:
- Agents continue working in all scenarios
- Clear log messages about degradation
- No crashes or data loss
- Beads JSONL remains consistent

File: tests/integration/test_mail_failures.py


Separate canonical BD_GUIDE.md from AGENTS.md

Create architectural separation between bd-specific instructions and project-specific instructions.

## Problem
Currently AGENTS.md mixes:
- bd tool documentation (changes with bd upgrades)
- Project-specific workflow (stable, manually maintained)

This makes it hard to update bd instructions without touching project docs.

## Solution
1. Generate .beads/BD_GUIDE.md from 'bd onboard' output
2. Mark it as auto-generated (never manually edit)
3. Version-stamp header with bd version
4. AGENTS.md references it instead of duplicating content
5. Auto-update BD_GUIDE.md when bd version changes

## Implementation
- Add 'bd onboard --output .beads/BD_GUIDE.md' option
- Detect version changes and offer to regenerate
- Add header: '<!-- Auto-generated by bd v0.24.2 - DO NOT EDIT -->'
- Update AGENTS.md to reference BD_GUIDE.md

## Benefits
- Clear separation of concerns
- Deterministic updates (no agent LLM involved)
- Git-trackable diffs show exactly what changed
- Progressive disclosure (agents read when needed)

## Acceptance Criteria
- BD_GUIDE.md auto-generated and version-stamped
- AGENTS.md references it appropriately
- Upgrade workflow auto-updates BD_GUIDE.md
- Git diffs clearly show bd instruction changes


Rapid 5


Document blocked_issues_cache architecture and behavior

Add comprehensive documentation about the blocked_issues_cache optimization to help future maintainers understand the design.

## What to document

1. **Architecture overview**
   - Why cache exists (performance: 752ms -> 29ms)
   - When cache is used (GetReadyWork queries)
   - How cache is maintained (invalidation triggers)

2. **Cache invalidation rules**
   - Invalidated on: dependency add/remove (blocks/parent-child only)
   - Invalidated on: any status change
   - Invalidated on: issue close
   - NOT invalidated on: related/discovered-from dependencies

3. **Transaction safety**
   - All invalidations happen within transactions
   - Cache can use tx or direct db connection
   - Rebuild is atomic (DELETE + INSERT in same tx)

4. **Performance characteristics**
   - Full rebuild on every invalidation
   - Rebuild is fast (<50ms on 10K database)
   - Write complexity traded for read speed
   - Dependency changes are rare vs reads

5. **Edge cases**
   - Parent-child transitive blocking
   - Closed issues don't block
   - Foreign key CASCADE handles deletions

## Where to document

Add to these locations:

1. **blocked_cache.go** - Add detailed package comment:
```go
// Package blocked_cache implements the blocked_issues_cache optimization.
//
// Performance: GetReadyWork originally used recursive CTE (752ms on 10K db).
// With cache: Simple NOT EXISTS query (29ms on 10K db).
//
// Cache Maintenance:
// - Rebuild triggered on dependency changes (blocks/parent-child only)
// - Rebuild triggered on status changes
// - Full rebuild (DELETE + INSERT) is fast enough for all cases
// ...
```

2. **ARCHITECTURE.md** or **PERFORMANCE.md** (new file) - High-level overview

3. **ready.go** - Update comment at line 84-85 with more detail

## Related

- [deleted:[deleted:bd-5qim]]: GetReadyWork optimization (implemented)
- bd-13gm: Cache validation tests
- bd-obdc: Cache rebuild command


Split test suites: fast vs. integration

Reorganize tests into separate packages/files for fast unit tests vs slow integration tests.

Benefits:
- Clear separation of concerns
- Easier to run just fast tests during development
- Can parallelize CI jobs better

Files to organize:
- beads_hash_multiclone_test.go (slow integration tests)
- beads_integration_test.go (medium-speed integration tests)
- Other test files (fast unit tests)


Remove Storage Cache from Server Struct

Eliminate cache fields and use s.storage directly


Delete server_cache_storage.go

Remove the entire cache implementation file (~286 lines)


Fix inconsistent error handling in multi-repo deletion tracking

From bd-xo6b code review: Multi-repo deletion tracking has mixed failure modes that can leave system in inconsistent state.

**Current behavior (daemon_sync.go):**
- Snapshot capture (L505-514): Hard fail → aborts sync
- Merge/prune (L575-584): Hard fail → aborts sync
- Base snapshot update (L613-619): Soft fail → logs warning, continues

**Critical problem:**
If merge fails on repo 3 of 5:
- Repos 1-2 have already merged and deleted issues (irreversible)
- Repos 3-5 are untouched
- Database is in partially-updated state
- No rollback mechanism

**Real-world scenario:**
```
Sync with repos [A, B, C]:
1. Capture snapshots A ✓, B ✓, C ✗ → ABORT (good)
2. Merge A ✓, B ✗ → ABORT but A already deleted issues (BAD - no rollback)
3. Update base A ⚠, B ⚠ → Warnings only (inconsistent with 1 & 2)
```

**Solution options:**
1. **Two-phase commit:**
   - Phase 1: Validate all repos (check files exist, readable, parseable)
   - Phase 2: Apply changes atomically (or fail entirely before any mutations)

2. **Fail-fast validation:**
   - Before any snapshot/merge operations, validate all repos upfront
   - Abort entire sync if any repo fails validation

3. **Make base snapshot update consistent:**
   - Either make it hard-fail like the others, or make all soft-fail

**Files:**
- cmd/bd/daemon_sync.go:505-514 (snapshot capture)
- cmd/bd/daemon_sync.go:575-584 (merge/prune)
- cmd/bd/daemon_sync.go:613-619 (base snapshot update)

**Recommendation:** Use option 1 (two-phase) or option 2 (fail-fast validation) + fix base snapshot inconsistency.


Add validation for duplicate external_ref in batch imports

Currently, if a batch import contains multiple issues with the same external_ref, the behavior is undefined. We should detect and handle this case.

Current behavior:
- No validation for duplicate external_ref within a batch
- Last-write-wins or non-deterministic behavior

Proposed solution:
- Detect duplicate external_ref values in incoming batch
- Fail with clear error message OR
- Merge duplicates intelligently (use newest timestamp)
- Add test case for this scenario

Related: bd-1022


Log errors from timer-triggered flushes instead of discarding


bd sync --status should not require sync.branch configuration

After a successful 'bd init', running 'bd sync --status' fails with:

Error: sync.branch not configured (run 'bd config set sync.branch <branch-name>')

This is confusing because:
1. bd init completes successfully without setting sync.branch
2. Users expect basic commands to work after init
3. sync.branch is only set if --branch flag is explicitly passed to bd init, or --team wizard is used

The sync.branch config is primarily for protected branch workflows. The --status flag should either:
- Fall back to current branch if sync.branch is not configured
- Not be available unless sync.branch is configured
- Or bd init should set sync.branch to the current branch by default

Root cause: sync.go:720 calls getSyncBranch() which requires sync.branch to be set (sync.go:702-704)


Optimize GetReadyWork performance - 752ms on 10K database (target: <50ms)

# Performance Analysis (10K Issue Database)

Analyzed using CPU profiles from benchmark suite on Apple M2 Pro.

## ✅ OPTIMIZATION COMPLETE

**Current Performance (as of 2025-11-23):**
- **10K database**: ~29ms (167K allocs, 16MB) ✅ **Target met!**
- **20K database**: ~60ms (338K allocs, 53MB) - Acceptable for scale
- **Original**: 752ms (before optimization)
- **Improvement**: **25.8x faster** 🎉

## Implementation

The cache optimization has been successfully implemented:

1. ✅ **blocked_issues_cache table** (migration 015)
   - Materializes recursive CTE computation
   - Rebuilt on dependency/status changes
   - See: `internal/storage/sqlite/blocked_cache.go`

2. ✅ **Cache invalidation triggers**
   - On dependency add/remove (`dependencies.go:156, 212`)
   - On status changes (`queries.go:521, 695`)
   - Only for 'blocks' and 'parent-child' dependency types

3. ✅ **Database indexes verified**
   - `idx_dependencies_depends_on_type_issue`
   - `idx_dependencies_depends_on_type`
   - `idx_issues_status`
   - All recommended indexes in place

## Benchmark Results

```
BenchmarkGetReadyWork_Large-10 (10K issues)
  29ms per operation
  167,447 allocations
  15.9 MB allocated

BenchmarkGetReadyWork_XLarge-10 (20K issues)
  60ms per operation
  337,819 allocations
  53.4 MB allocated
```

## Original Performance Analysis

| Operation                        | Time    | Allocations | Memory |
|----------------------------------|---------|-------------|--------|
| bd ready (GetReadyWork)          | ~752ms  | 167,466     | 16MB   |
| bd list (SearchIssues no filter) | ~11.6ms | 89,214      | 5.8MB  |
| bd list (SearchIssues filtered)  | ~9.2ms  | 62,365      | 3.5MB  |

**Target: <50ms for all operations on 10K database** ✅ **ACHIEVED**

## Root Cause (Now Fixed)

GetReadyWork originally used recursive CTE to propagate blocking on every call:
- 65x slower than SearchIssues
- Recalculated entire blocked issue tree on every call
- Database syscalls: ~75% of CPU time

## Solution

Cache-based approach implemented:
- `blocked_issues_cache` table stores pre-computed blocked issues
- Invalidated only when dependencies or issue status changes
- Read queries use simple `NOT EXISTS` lookup instead of recursive CTE
- Write complexity traded for read speed (ready called >> dependency changes)

## Verification

Run benchmarks to validate:
```bash
go test -tags=bench -bench='BenchmarkGetReadyWork.*' -benchmem ./internal/storage/sqlite/
```

Profile files automatically generated in `internal/storage/sqlite/bench-cpu-*.prof`


Vendor beads-merge Go code into internal/merge/

Copy beads-merge source code from @neongreen's repo into bd codebase.

**Tasks**:
- Create `internal/merge/` package
- Copy merge algorithm code
- Add attribution header to all files
- Update imports to use bd's internal types
- Add LICENSE/ATTRIBUTION file crediting @neongreen
- Keep original algorithm intact

**Source**: https://github.com/neongreen/mono/tree/main/beads-merge


bd-hv01: Race condition with concurrent snapshot operations

## Problem
Snapshot files have no locking. Multiple processes can call captureLeftSnapshot simultaneously:

1. Process A: export → begins snapshot
2. Process B: export → begins snapshot
3. Process A: writes partial left.jsonl
4. Process B: overwrites with its left.jsonl
5. Process A: completes merge with wrong snapshot

## Impact
- Data corruption in multi-process scenarios
- Daemon + manual sync race
- Multiple git clones on same filesystem

## Fix
Use atomic file operations with process-specific temp files:
```go
func captureLeftSnapshot(jsonlPath string) error {
    _, leftPath := getSnapshotPaths(jsonlPath)
    tempPath := fmt.Sprintf("%s.%d.tmp", leftPath, os.Getpid())
    if err := copyFileSnapshot(jsonlPath, tempPath); err != nil {
        return err
    }
    return os.Rename(tempPath, leftPath) // Atomic on POSIX
}
```

## Files Affected
- cmd/bd/deletion_tracking.go:24-29 (captureLeftSnapshot)
- cmd/bd/deletion_tracking.go:31-36 (updateBaseSnapshot)


Wire config to import pipeline

Connect import.orphan_handling config to importer.go and sqlite validation functions. Pass mode flag through call chain. Implement all four modes (strict/resurrect/skip/allow) with proper error messages and logging.


Refactor daemon.go into internal/daemonrunner

Extract daemon runtime from daemon.go (1,565 lines) into internal/daemonrunner with focused modules: config.go, daemon.go, process.go, rpc_server.go, sync.go, git.go. Keep cobra command thin.


Test issue 1


Speed up main_test.go - tests hang indefinitely due to nil rootCtx

## Problem

main_test.go tests are hanging indefinitely, making them unusable and blocking development.

## Root Cause

Tests that call flushToJSONL() or autoImportIfNewer() hang forever because:
- rootCtx is nil in test environment (defined in cmd/bd/main.go:67)
- flushToJSONL() uses rootCtx for DB operations (autoflush.go:503)
- When rootCtx is nil, DB calls timeout/hang indefinitely

## Affected Tests (10+)

- TestAutoFlushOnExit
- TestAutoFlushJSONLContent
- TestAutoFlushErrorHandling
- TestAutoImportIfNewer
- TestAutoImportDisabled
- TestAutoImportWithUpdate
- TestAutoImportNoUpdate
- TestAutoImportMergeConflict
- TestAutoImportConflictMarkerFalsePositive
- TestAutoImportClosedAtInvariant

## Proof

```bash
# Before fix: TestAutoFlushJSONLContent HANGS (killed after 2+ min)
# After adding rootCtx init: Completes in 0.04s
# Speedup: ∞ → 0.04s
```

## Solution

See MAIN_TEST_OPTIMIZATION_PLAN.md for complete fix plan.

**Quick Fix (5 min)**: Add to each hanging test:
```go
ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
defer cancel()
oldRootCtx := rootCtx
rootCtx = ctx
defer func() { rootCtx = oldRootCtx }()
```

**Full Optimization (40 min total)**:
1. Fix rootCtx (5 min) - unblocks tests
2. Reduce sleep durations 10x (2 min) - saves ~280ms
3. Use in-memory DBs (10 min) - saves ~1s
4. Share test fixtures (15 min) - saves ~1.2s
5. Fix skipped debounce test (5 min)

## Expected Results

- Tests go from hanging → <5s total runtime
- Keep critical integration test coverage
- Tests caught real bugs: bd-270, bd-206, bd-160

## Files

- Analysis: MAIN_TEST_REFACTOR_NOTES.md
- Solution: MAIN_TEST_OPTIMIZATION_PLAN.md
- Tests: cmd/bd/main_test.go (18 tests, 1322 LOC)

## Priority

P1 - Blocking development, tests unusable in current state


Clarify JSONL size bounds with multi-repo

The contributor-workflow-analysis.md states (line 226): 'Keep beads.jsonl small enough for agents to read (<25k)'

With multi-repo hydration, it's unclear whether this bound applies to:
- Each individual JSONL file (likely intention)
- The total hydrated size across all repos (unclear)
- Both (most conservative)

Clarification needed because:
- VC monitors .beads/issues.jsonl size to stay under limit
- With multi-repo, VC needs to know if each additional repo also has 25k limit
- Agents reading hydrated data need to know total size bounds
- Performance characteristics depend on total vs per-repo limits

Example scenario:
- Primary repo: 20k JSONL
- Planning repo: 15k JSONL
- Total hydrated: 35k
Is this acceptable or does it violate the <25k principle?


Fix linting error in migrate.go

Linter reports error:
```
cmd/bd/migrate.go:647:37: cleanupWALFiles - result 0 (error) is always nil (unparam)
```

The `cleanupWALFiles` function always returns nil, so the error return type should be removed or the function should actually return errors when appropriate.


bd delete fails to find closed issues

## Steps to Reproduce
1. Close some issues with `bd close`
2. Try to delete them with `bd delete <ids> --force`
3. Get error "issues not found"

## Expected Behavior
Should delete the closed issues

## Actual Behavior
```
Error: issues not found: bd-74ee, bd-9b13, bd-72w, bd-149, bd-5iv, bd-78w
```

But `bd list --status closed --json` shows they exist.

## Root Cause
Likely the delete command is only looking for open issues, or there's a race condition with auto-import.


Fix silent error handling in RPC response writing

Marshal and write errors silently ignored in writeResponse, can send partial JSON and hang clients.

Location: internal/rpc/server_lifecycle_conn.go:228-232

Problem:
- json.Marshal error ignored - cyclic reference sends corrupt JSON
- Write error ignored - connection closed, no indication to caller
- WriteByte error ignored - client hangs waiting for newline
- Flush error ignored - partial data buffered

Current code:
func (s *Server) writeResponse(writer *bufio.Writer, resp Response) {
    data, _ := json.Marshal(resp)  // Ignored!
    _, _ = writer.Write(data)      // Ignored!
    _ = writer.WriteByte('\n')     // Ignored!
    _ = writer.Flush()             // Ignored!
}

Solution: Return errors, handle in caller, close connection on error

Impact: Client hangs waiting for response; corrupt JSON sent

Effort: 1 hour


User Diagnostics (bd doctor --perf)

Extend cmd/bd/doctor.go to add --perf flag for user performance diagnostics.

Functionality:
- Add --perf flag to existing bd doctor command
- Collect system info (OS, arch, Go version, SQLite version)
- Collect database stats (size, issue counts, dependency counts)
- Time key operations on user's actual database:
  * bd ready
  * bd list --status=open
  * bd show <random-issue>
  * bd create (with rollback)
  * Search with filters
- Generate CPU profile automatically (timestamped filename)
- Output simple report with platform info, timings, profile location

Output example:
  Beads Performance Diagnostics
  Platform: darwin/arm64
  Database: 8,234 issues (4,123 open)

  Operation Performance:
    bd ready                  42ms
    bd list --status=open     15ms

  Profile saved: beads-perf-2025-11-13.prof
  View: go tool pprof -http=:8080 beads-perf-2025-11-13.prof

Implementation:
- Extend cmd/bd/doctor.go (~100 lines)
- Use runtime/pprof for CPU profiling
- Use time.Now()/time.Since() for timing
- Rollback test operations (don't modify user's database)


Fix Windows test failures - metadata keys contain colons from absolute paths


bd detect-pollution - Test pollution detector

Detect test issues that leaked into production DB.

Pattern matching for:
- Titles starting with 'test', 'benchmark', 'sample'
- Sequential numbering (test-1, test-2)
- Generic descriptions
- Created in rapid succession

Optional AI scoring for confidence.

Files: cmd/bd/detect_pollution.go (new)


Extract Daemon struct and config into internal/daemonrunner

Create internal/daemonrunner with Config struct and Daemon struct. Move daemon runtime logic from cmd/bd/daemon.go Run function into Daemon.Start/Stop methods.

Refactoring complete! Created internal/daemonrunner package with:
- Config struct (config.go)
- Daemon struct with Start/Stop methods (daemon.go)
- RPC server lifecycle (rpc.go)
- Sync loop implementation (sync.go)
- Git operations (git.go)
- Process management (process.go, flock_*.go)
- Logger setup (logger.go)
- Platform-specific signal handling (signals_*.go)
- Database fingerprint validation (fingerprint.go)

Build succeeds and most daemon tests pass. Import functionality still delegated to cmd/bd (marked with TODO(bd-b5a3)).


Fix race condition in client socket cleanup (client.go)

**Location:** internal/rpc/client.go:44-76

**Issue:** TryConnectWithTimeout() has race window between socket existence check and lock file check.

**Problematic Sequence:**
```go
socketExists := endpointExists(socketPath)  // line 56
if !socketExists {
    beadsDir := filepath.Dir(socketPath)
    running, _ := lockfile.TryDaemonLock(beadsDir)  // line 61
    // RACE: socket could've been deleted between lines 56 and 61
}
```

**Impact:** Could incorrectly report daemon as running when it crashed. Socket gets deleted during cleanup but lock file still held temporarily.

**Fix:** Combine checks atomically or use transactional approach with proper locking.


Add tests for DetectCycles to improve coverage from 29.6%

DetectCycles currently has 29.6% coverage. Need comprehensive tests for:
- Simple cycles (A->B->A)
- Complex multi-node cycles
- Acyclic graphs (should not detect cycles)
- Self-loops
- Multiple independent cycles
- Edge cases (empty graph, single node)


CRDT-based architecture for guaranteed convergence (v2.0)

## Vision
Redesign beads around Conflict-Free Replicated Data Types (CRDTs) to provide mathematical guarantees for N-way collision resolution at arbitrary scale.

## Current Limitations
- Content-hash based collision resolution fails at 5+ clones
- Non-deterministic convergence in multi-round scenarios
- UNIQUE constraint violations during rename operations
- No formal proof of convergence properties

## CRDT Benefits
- Provably convergent (Strong Eventual Consistency)
- Commutative/Associative/Idempotent operations
- No coordination required between clones
- Scales to 100+ concurrent workers
- Well-understood mathematical foundations

## Proposed Architecture

### 1. UUID-Based IDs
Replace sequential IDs with UUIDs:
- Current: bd-1c63eb84, bd-9063acda, bd-4d80b7b1
- CRDT: bd-a1b2c3d4-e5f6-7890-abcd-ef1234567890
- Human aliases maintained separately: #42 maps to UUID

### 2. Last-Write-Wins (LWW) Elements
Each field becomes an LWW register:
- title: (timestamp, clone_id, value)
- status: (timestamp, clone_id, value)
- Deterministic conflict resolution via Lamport timestamp + clone_id tiebreaker

### 3. Operation Log
Track all operations as CRDT ops:
- CREATE(uuid, timestamp, clone_id, fields)
- UPDATE(uuid, field, timestamp, clone_id, value)
- DELETE(uuid, timestamp, clone_id) - tombstone, not hard delete

### 4. Sync as Merge
Syncing becomes merging two CRDT states:
- No merge conflicts possible
- Deterministic merge function
- Guaranteed convergence

## Implementation Phases

### Phase 1: Research & Design (4 weeks)
- Study existing CRDT implementations (Automerge, Yjs, Loro)
- Design schema for CRDT-based issue tracking
- Prototype LWW-based Issue CRDT
- Benchmark performance vs current system

### Phase 2: Parallel Implementation (6 weeks)
- Implement CRDT storage layer alongside SQLite
- Build conversion tools: SQLite ↔ CRDT
- Maintain backward compatibility with v1.x format
- Migration path for existing databases

### Phase 3: Testing & Validation (4 weeks)
- Formal verification of convergence properties
- Stress testing with 100+ clone scenario
- Performance profiling and optimization
- Documentation and examples

### Phase 4: Migration & Rollout (4 weeks)
- Release v2.0-beta with CRDT backend
- Gradual migration from v1.x
- Monitoring and bug fixes
- Final v2.0 release

## Risks & Mitigations

**Risk 1: Performance overhead**
- Mitigation: Benchmark early, optimize hot paths
- CRDTs can be slower than append-only logs
- May need compaction strategy

**Risk 2: Storage bloat**
- Mitigation: Implement operation log compaction
- Tombstone garbage collection for deleted issues
- Periodic snapshots to reduce log size

**Risk 3: Breaking changes**
- Mitigation: Maintain v1.x compatibility layer
- Gradual migration tools
- Dual-mode operation during transition

**Risk 4: Complexity**
- Mitigation: Use battle-tested CRDT libraries
- Comprehensive documentation
- Clear migration guide

## Success Criteria
- 100-clone collision test passes without failures
- Formal proof of convergence properties
- Performance within 2x of current system
- Zero manual conflict resolution required
- Backward compatible with v1.x databases

## Timeline
18-20 weeks total (4-5 months)

## References
- Automerge: https://automerge.org
- Yjs: https://docs.yjs.dev
- Loro: https://loro.dev
- CRDT theory: Shapiro et al, A comprehensive study of CRDTs
- Related issues: bd-e6d71828, bd-7a2b58fc, bd-81abb639


Fix variable shadowing in GetNextChildID resurrection code

## Problem
Minor variable shadowing in hash_ids.go:

```go
// Line 33: err declared here
err := s.db.QueryRowContext(ctx, `SELECT COUNT(*) FROM issues WHERE id = ?`, parentID).Scan(&count)

// Line 38: err reused/shadowed here
resurrected, err := s.TryResurrectParent(ctx, parentID)
```

While Go allows this, it can be confusing and some linters flag it.

## Solution
Use different variable name:

```go
resurrected, resurrectErr := s.TryResurrectParent(ctx, parentID)
if resurrectErr != nil {
    return "", fmt.Errorf("failed to resurrect parent %s: %w", parentID, resurrectErr)
}
```

## Files
- internal/storage/sqlite/hash_ids.go:38

## Priority
Low - code works correctly, just a style improvement


Week 1 task


Production Readiness (Optional)

Enable multi-machine deployments with containerization and monitoring.


bd find-duplicates - AI-powered duplicate detection

Find semantically duplicate issues.

Approaches:
1. Mechanical: Exact title/description matching
2. Embeddings: Cosine similarity (cheap, scalable)
3. AI: LLM-based semantic comparison (expensive, accurate)

Uses embeddings by default for >100 issues.

Files: cmd/bd/find_duplicates.go (new)


Add tests for internal/importer package

Currently 0.0% coverage. Need tests for JSONL import logic including collision detection and resolution.


Add merge helper commands (bd sync --merge)

Add commands to merge beads branch back to main.

Tasks:
- Implement bd sync --merge command
- Implement bd sync --status command
- Implement bd sync --auto-merge (optional, for automation)
- Detect merge conflicts and provide guidance
- Show commit diff between branches
- Verify main branch is clean before merge
- Push merged changes to remote

Estimated effort: 2-3 days


Fix TestAddCommentUpdatesTimestamp timing flake on Windows

The TestAddCommentUpdatesTimestamp test fails on Windows due to insufficient time resolution between creating an issue and adding a comment. The test expects updated_at to be strictly after the original timestamp, but on Windows both operations can complete within the same time unit, causing them to have identical timestamps.


Add tests for daemon lifecycle module


Issue 2 to reopen


Phase 3: Enhance daemon robustness for GH #353

Improve daemon health checks and metadata refresh to prevent staleness issues.

**Tasks:**
1. Enhance daemon health checks to detect unreachable daemons
2. Add daemon metadata refresh (check disk every 5s)
3. Comprehensive testing in sandbox environments

**Implementation:**
- cmd/bd/main.go: Better health check error handling (lines 300-367)
- cmd/bd/daemon_event_loop.go: Periodic metadata refresh
- cmd/bd/daemon_unix.go: Permission-aware process checks

**References:**
- docs/GH353_INVESTIGATION.md (Solutions 4 & 5, lines 161-209)
- Depends on: Phase 2 (bd-u3t)

**Acceptance Criteria:**
- Daemon detects when it's unreachable and auto-switches to direct mode
- Daemon picks up external import operations without restart
- All edge cases handled gracefully


Extract duplicated validation logic from CLI commands

~150 lines of identical validation logic duplicated between cmd_create.go and cmd_update.go

Duplication found:
- validateBeadFields(): 2 identical copies (50+ lines each)
- parseTimeWithDefault(): 2 identical copies (30 lines each)
- Flag definitions: 15+ duplicate registrations

Solution: Extract to shared packages:
- internal/validation/bead.go - Centralized validation
- internal/utils/time.go - Consolidate time parsing (already exists)
- cmd/bd/flags.go - Shared flag registration

Impact: Changes require touching 2+ files; high risk of inconsistency; steep learning curve

Effort: 4-6 hours


Create startup hook snippet for upgrade detection

Provide a reusable startup hook that agents can use to detect bd upgrades automatically.

## What to Create
A bash script snippet that:
1. Reads current bd version
2. Compares to last-seen version in metadata.json
3. Shows 'bd info --whats-new' output when version changes
4. Updates metadata.json with new version
5. Auto-runs 'bd hooks install' if hooks outdated

## Where to Document
- Create examples/hooks/startup-version-check.sh
- Document in AGENTS.md with usage instructions
- Add comment header explaining how to integrate with Claude Code, Cursor, etc.

## Key Features
- Works today with zero bd code changes
- Leverages existing bd info --whats-new
- Uses metadata.json for persistence
- Auto-fixes outdated git hooks

## Acceptance Criteria
- Script works standalone
- Clear integration instructions for popular AI environments
- Handles edge cases (no metadata.json, first run, etc.)


Benchmark Suite for Critical Operations

Extend existing benchmark suite with comprehensive benchmarks for critical operations at 10K-20K scale.

Existing benchmarks (keep these):
- cycle_bench_test.go - Cycle detection up to 5K issues (linear, tree, dense graphs)
- compact_bench_test.go - Compaction candidate queries (100 issues)
- internal/rpc/bench_test.go - Daemon vs direct mode comparison

New benchmarks to add in sqlite_bench_test.go (~10-12 total):
1. GetReadyWork - Simple, deep hierarchies, cross-linked (CRITICAL - not currently benchmarked)
2. SearchIssues - No filters, complex filters (CRITICAL - not currently benchmarked)
3. CreateIssue - Single issue creation
4. UpdateIssue - Status/priority/assignee changes
5. AddDependency - Extend to 10K/20K scale (currently only up to 5K)
6. JSONL Export - Full export performance
7. JSONL Import - Import performance

Scale levels:
- Large: 10K issues (5K open, 5K closed)
- XLarge: 20K issues (10K open, 10K closed)

Implementation:
- NEW FILE: internal/storage/sqlite/sqlite_bench_test.go
- Keep existing cycle_bench_test.go and compact_bench_test.go unchanged
- Build tag: //go:build bench
- Standard testing.B benchmarks
- b.ReportAllocs() for memory tracking
- Test both SQLite and JSONL-imported databases

Always generates CPU and memory profiles for analysis.


Daemon fails to auto-import after git pull updates JSONL

After git pull updates .beads/issues.jsonl, daemon doesn't automatically re-import changes, causing stale data to be shown until next sync cycle (up to 5 minutes).

Reproduction:
1. Repo A: Close issues, export, commit, push
2. Repo B: git pull (successfully updates .beads/issues.jsonl)
3. bd show <issue> shows OLD status from daemon's SQLite db
4. JSONL on disk has correct new status

Root cause: Daemon sync cycle runs on timer (5min). When user manually runs git pull, daemon doesn't detect JSONL was updated externally and continues serving stale data from SQLite.

Impact:
- High for AI agents using beads in git workflows
- Breaks fundamental git-as-source-of-truth model
- Confusing UX: git log shows commit, bd shows old state
- Data consistency issues between JSONL and daemon

See WYVERN_SYNC_ISSUE.md for full analysis.

**Fixed in v0.21.2!**

The daemon auto-import is fully implemented:
- internal/autoimport package handles staleness detection
- internal/importer package provides shared import logic (used by both CLI and daemon)
- daemon's checkAndAutoImportIfStale() calls autoimport.AutoImportIfNewer()
- importFunc uses importer.ImportIssues() with auto-rename enabled
- All tests passing

The critical data corruption bug is FIXED:
✅ After git pull, daemon detects JSONL is newer (mtime check)
✅ Daemon auto-imports before serving requests
✅ No stale data served
✅ No data loss in multi-agent workflows

Verification needed: Run two-repo test to confirm end-to-end behavior.


Set up WASM build pipeline

Configure Go→WASM compilation pipeline. Child of epic bd-44d0.

## Tasks
- [ ] Create build-wasm.sh script (GOOS=js GOARCH=wasm)
- [ ] Test basic WASM module loading in Node.js
- [ ] Set up wasm_exec.js wrapper
- [ ] Add WASM build to CI/CD
- [ ] Document build process

## Validation
- bd.wasm compiles successfully
- Can load in Node.js without errors
- Bundle size <10MB


Isolate RPC server startup into rpc_server.go

Create internal/daemonrunner/rpc_server.go with StartRPC function. Move startRPCServer logic here and return typed handle.


Investigate and upgrade to modernc.org/sqlite 1.39.1+

We had to pin modernc.org/sqlite to v1.38.2 due to a FOREIGN KEY constraint regression in v1.39.1 (SQLite 3.50.4).

**Issue:** [deleted:bd-cb64c226.2], GH #144

**Symptom:** CloseIssue fails with "FOREIGN KEY constraint failed (787)" when called via MCP/daemon, but works fine via CLI.

**Root Cause:** Unknown - likely stricter FK enforcement in SQLite 3.50.4 or modernc.org wrapper changes.

**Workaround:** Pinned to v1.38.2 (SQLite 3.49.x)

**TODO:**
1. Monitor modernc.org/sqlite releases for fixes
2. Check SQLite 3.50.5+ changelogs for FK-related fixes
3. Investigate why daemon mode fails but CLI succeeds (connection reuse? transaction isolation?)
4. Consider filing upstream issue with reproducible test case
5. Upgrade when safe


Extract daemon config functions to daemon_config.go


Fix CI failures before 0.21.3 release

CI is failing on multiple jobs:
1. Nix flake: Tests fail due to missing git in build environment
2. Windows tests: Need to check what's failing
3. Linux tests: Need to check what's failing
4. Linter errors: Many unchecked errors need fixing

Need to fix before tagging v0.21.3 release.

Fixed linter errors (errcheck, misspell), Nix flake git dependency, and import database discovery bug. Tests still failing - need to investigate further.


Vendor and integrate beads-merge tool

Incorporate @neongreen's beads-merge 3-way merge tool into bd to solve:
- Multi-workspace deletion sync (bd-hv01)
- Git merge conflicts in JSONL
- Field-level intelligent merging

**Repository**: https://github.com/neongreen/mono/tree/main/beads-merge

**Integration approach**: Vendor the Go code with attribution, pending @neongreen's approval (GitHub issue #240)

**Benefits**:
- Prevents deletion resurrection bug
- Smart dependency merging (union + dedup)
- Timestamp handling (max wins)
- Detects deleted-vs-modified conflicts
- Works as git merge driver

**Acceptance criteria**:
- beads-merge code vendored into bd codebase
- Available as `bd merge` command
- Git merge driver setup during `bd init`
- Tests verify 3-way merge logic
- Documentation updated
- @neongreen credited


bd import silently succeeds when database matches working tree but not git HEAD

**Critical**: bd import reports '0 created, 0 updated' when database matches working tree JSONL, even when working tree is ahead of git HEAD. This gives false confidence that everything is synced with the source of truth.

## Reproduction

1. Start with database synced to working tree .beads/issues.jsonl (376 issues)
2. Git HEAD has older version of .beads/issues.jsonl (354 issues)
3. Run: bd import .beads/issues.jsonl
4. Output: 'Import complete: 0 created, 0 updated'

## Problem

User expects 'bd import' after 'git pull' to sync database with committed state, but:
- Command silently succeeds because DB already matches working tree
- No warning that working tree has uncommitted changes
- User falsely believes everything is synced with git
- Violates 'JSONL in git is source of truth' principle

## Expected Behavior

When .beads/issues.jsonl differs from git HEAD, bd import should:
1. Detect uncommitted changes: git diff --quiet HEAD .beads/issues.jsonl
2. Warn user: 'Warning: .beads/issues.jsonl has uncommitted changes (376 lines vs 354 in HEAD)'
3. Clarify status: 'Import complete: 0 created, 0 updated (already synced with working tree)'
4. Recommend: 'Run git diff .beads/issues.jsonl to review uncommitted work'

## Impact

- Users can't trust 'bd import' status messages
- Silent data loss risk if user assumes synced and runs git checkout
- Breaks mental model of 'JSONL in git = source of truth'
- Critical for VC's landing-the-plane workflow


Fix Nix flake build test failures

Nix build is failing during test phase with same test errors as Windows.

**Error:**
```
error: Cannot build '/nix/store/rgyi1j44dm6ylrzlg2h3z97axmfq9hzr-beads-0.9.9.drv'.
Reason: builder failed with exit code 1.
FAIL github.com/steveyegge/beads/cmd/bd 16.141s
```

This may be related to test environment setup or the same issues affecting Windows tests.


Fix TestTwoCloneCollision to compare content not timestamps

The test at beads_twoclone_test.go:204-207 currently compares full JSON output including timestamps, causing false negative failures.

Current behavior:
- Both clones converge to identical semantic content
- Clone A: test-2="Issue from clone A", test-1="Issue from clone B"
- Clone B: test-1="Issue from clone B", test-2="Issue from clone A"
- Titles match IDs correctly, no data corruption
- Only timestamps differ (expected and acceptable)

Fix needed:
- Replace exact JSON comparison with content-aware comparison
- Normalize or ignore timestamp fields when asserting convergence
- Test should PASS after this fix

This blocks completion of bd-71107098.


Issue with desc

This is a description


Add docs/architecture/event_driven.md

Copy event_driven_daemon.md into docs/ folder. Add to documentation index.


Latency test manual


Database pollution in ~/src/dave/vc: 895 issues vs canonical 310

~/src/dave/vc/.beads/beads.db has 895 total issues (675 open, 149 closed), but canonical ~/src/vc/.beads/vc.db has only 310 issues (230 open). This is 585 extra issues - likely pollution from other repositories.

Need to:
1. Identify which issues are polluted (use detect-pollution)
2. Compare issue IDs between dave/vc and canonical vc databases
3. Determine pollution source (beads repo? other repos?)
4. Clean up polluted database
5. Root cause: why did pollution occur?

Investigation findings so far:
- Polluted DB (~/src/dave/vc/.beads/beads.db): 241 issues (180 open, 43 closed)
- Canonical DB (~/src/vc/.beads/vc.db): 310 issues (230 open, 62 closed)
- Contradiction: Polluted has FEWER issues, not more (241 < 310, diff of 69)
- Only 1 unique ID in polluted: vc-55fi
- All source_repo fields are set to "." in both databases
- Issue description claims 895 issues in polluted vs 310 canonical - numbers don't match current state
- Possible: Pollution was already partially cleaned, or issue description refers to different database?


Fix PR #319: Performance Improvements - CI failures and lint errors

PR #319 (Performance Improvements) has excellent performance optimizations but is blocked by CI failures.

## The PR
- URL: https://github.com/steveyegge/beads/pull/319
- Author: @rsnodgrass (Ryan)
- Claimed improvements: bd ready 20.5x faster (752ms → 36.6ms), startup 10.5x faster

## CI Failures

### Lint Errors (8 total)
1. cmd/bd/deletion_tracking.go:57 - unchecked os.Remove
2. cmd/bd/import.go:548 - unchecked os.RemoveAll
3. cmd/bd/message.go:205 - unchecked resp.Body.Close
4. cmd/bd/migrate_issues.go:633 - unchecked fmt.Scanln
5. cmd/bd/migrate_issues.go:701 - unchecked MarkFlagRequired
6. cmd/bd/migrate_issues.go:702 - unchecked MarkFlagRequired
7. cmd/bd/show.go:610 - gosec G104 unhandled error
8. cmd/bd/show.go:614 - gosec G104 unhandled error

### Test Failures
All syncbranch_test.go tests failing with:
"migration external_ref_column failed: failed to create index on external_ref: sqlite3: SQL logic error: no such table: main.issues"

This suggests the PR branch needs rebasing on current main.

## Required Work

### 1. Fix Lint Errors
Add proper error handling for all 8 flagged locations. Most can use _ = or log warnings.

### 2. Rebase on Current Main
The migration test failures indicate the branch is out of sync. Need to:
- git fetch upstream
- git rebase upstream/main
- Resolve any conflicts
- Verify tests pass locally

### 3. Verify CI Passes
- All lint checks green
- All tests pass (Linux, Windows, Nix)

## Optional Improvements
- Consider splitting into smaller PRs (core index, WASM cache, testing infra)
- Add documentation for benchmark usage
- Extract helper functions in doctor/perf.go for better testability

## Value
This PR delivers real performance improvements. The index optimization alone is worth merging quickly once CI is fixed.


Command Set Standardization & Flag Consistency

Comprehensive improvements to bd command set based on 2025 audit findings.

## Background
See docs/command-audit-2025.md for detailed analysis.

## Goals
1. Standardize flag naming and behavior across all commands
2. Add missing flags for feature parity
3. Fix naming confusion
4. Improve consistency in JSON output

## Success Criteria
- All mutating commands support --dry-run (no --preview variants)
- bd update supports label operations
- bd search has filter parity with bd list
- Priority flags accept both int and P0-P4 format everywhere
- JSON output is consistent across all commands


Code Review Sweep: thorough

Perform thorough code review sweep based on accumulated activity.

**AI Reasoning:**
Significant code volume added (150,273 lines) across multiple critical areas, including cmd/bd, internal/storage/sqlite, and internal/rpc. High file change count (616) indicates substantial refactoring or new functionality. The metrics suggest potential for subtle architectural or implementation issues that warrant review.

**Scope:** thorough
**Target Areas:** cmd/bd, internal/storage/sqlite, internal/rpc
**Estimated Files:** 12
**Estimated Cost:** $5

**Task:**
Review files for non-obvious issues that agents miss during focused work:
- Inefficiencies (algorithmic, resource usage)
- Subtle bugs (race conditions, off-by-one, copy-paste)
- Poor patterns (coupling, complexity, duplication)
- Missing best practices (error handling, docs, tests)
- Unnamed anti-patterns

File discovered issues with detailed reasoning and suggestions.


VCS-agnostic sync support

Make bd sync work with multiple VCS types (git, jujutsu, mercurial, sapling) by detecting VCS per repo and using appropriate sync commands, supporting mixed-VCS multi-repo configs.


Add UNIQUE constraint on external_ref column

The external_ref column should have a UNIQUE constraint to prevent multiple issues from having the same external reference. This ensures data integrity when syncing from external systems (Jira, GitHub, Linear).

Current behavior:
- Multiple issues can have the same external_ref
- GetIssueByExternalRef returns first match (non-deterministic with duplicates)

Proposed solution:
- Add UNIQUE constraint to external_ref column
- Add migration to check for and resolve existing duplicates
- Update tests to verify constraint enforcement

Related: bd-1022


Migration and onboarding for multi-repo

Create migration tools, wizards, and documentation to help users adopt multi-repo workflow, with special focus on OSS contributor onboarding and team adoption scenarios.


Measure notification latency vs git sync

Benchmark end-to-end latency for status updates to propagate between agents using both methods.

Acceptance Criteria:
- Measure git sync latency (commit → push → pull → import)
- Measure Agent Mail latency (send_message → fetch_inbox)
- Document latency distribution (p50, p95, p99)
- Verify <100ms claim for Agent Mail
- Compare against 1-5s baseline for git

Success Metric: Agent Mail latency < 100ms, git sync latency > 1000ms

Latency benchmark completed. Results documented in latency_results.md:
- Git sync: 2000-5000ms (full cycle with network)
- Agent Mail: <100ms (HTTP API round-trip)
- Confirms 20-50x latency reduction claim


bd-hv01: Silent partial deletion failures cause DB inconsistency

Problem: deletion_tracking.go:76-77 logs deletion errors as warnings but continues. If deletion fails midway (database locked, disk full), some issues delete but others don't. System thinks all deletions succeeded.

Impact: Database diverges from JSONL, silent corruption, issues may resurrect on next sync.

Fix: Collect errors and fail the operation:
var deletionErrors []error
for _, id := range acceptedDeletions {
    if err := d.DeleteIssue(ctx, id); err != nil {
        deletionErrors = append(deletionErrors, fmt.Errorf("issue %s: %w", id, err))
    }
}
if len(deletionErrors) > 0 {
    return false, fmt.Errorf("deletion failures: %v", deletionErrors)
}

Files: cmd/bd/deletion_tracking.go:73-82


bd message: Improve type safety with typed parameter structs


Remove unused global daemon infrastructure (internal/daemonrunner/)

The internal/daemonrunner/ package (1,468 LOC) contains the old global daemon implementation that is no longer used. We now use per-workspace daemons.

Deadcode analysis shows all these functions are unreachable:
- Daemon.Start, runGlobalDaemon, setupLock
- validateSingleDatabase, validateSchemaVersion
- registerDaemon, unregisterDaemon
- validateDatabaseFingerprint
- Full git client implementation (NewGitClient, HasUpstream, HasChanges, Commit, Push, Pull)
- Helper functions: isGitRepo, gitHasUpstream, gitHasChanges, gitCommit

The entire package appears unused since switching to per-workspace daemon architecture.

Files to remove:
- daemon.go (9,436 bytes)
- git.go (3,510 bytes)
- sync.go (6,401 bytes)
- fingerprint.go (2,076 bytes)
- process.go (3,332 bytes)
- rpc.go (994 bytes)
- config.go (486 bytes)
- logger.go (1,579 bytes)
- flock_*.go (platform-specific file locking)
- signals_*.go (platform-specific signal handling)
- All test files

Total cleanup: ~1,500 LOC


Add t.Parallel() to slow hash multiclone tests

Add t.Parallel() to TestHashIDs_MultiCloneConverge and TestHashIDs_IdenticalContentDedup so they run concurrently.

Expected savings: ~10 seconds (from 20s to ~11s)

Implementation:
- Add t.Parallel() call at start of each test function
- Verify tests don't share resources that would cause conflicts
- Run tests to confirm they work in parallel

File: beads_hash_multiclone_test.go:34, :101


Create Docker image for Agent Mail

Containerize Agent Mail server for easy deployment.

Acceptance Criteria:
- Dockerfile with Python 3.14
- Health check endpoint
- Volume mount for storage
- Environment variable configuration
- Multi-arch builds (amd64, arm64)

File: deployment/agent-mail/Dockerfile


Fix monitor-webui status filter


Debug test 2


Support --parent flag in daemon mode

Added support for hierarchical child issue creation using --parent flag in daemon mode. Previously only worked in direct mode.


Optimize cmd/bd long-mode tests by switching to in-process testing

The long-mode CLI tests in cmd/bd are slow (1.4-4.4 seconds each) because they spawn full bd processes via exec.Command() for every operation.

Current approach:
- Each runBD() call spawns new bd process via exec.Command(testBD, args...)
- Each process initializes Go runtime, loads SQLite, parses CLI flags
- Tests run serially (create → update → show → close)
- Even with --no-daemon flag, there's significant process spawn overhead

Example timing from test run:
- TestCLI_PriorityFormats: 2.21s
- TestCLI_Show: 2.26s
- TestCLI_Ready: 2.29s
- TestCLI_Import: 4.42s

Optimization strategy:
1. Convert most tests to in-process testing (call bd functions directly)
2. Reuse test databases across related operations instead of fresh init each time
3. Keep a few exec.Command() tests that batch multiple operations to verify the CLI path works end-to-end

This should reduce test time from ~40s to ~5s for the affected tests.

Converted all CLI tests in cli_fast_test.go to use in-process testing via rootCmd.Execute(). Created runBDInProcess() helper that:
- Calls rootCmd.Execute() directly instead of spawning processes
- Uses mutex to serialize execution (rootCmd/viper not thread-safe)
- Properly cleans up global state (store, daemonClient)
- Returns only stdout to avoid JSON parsing issues with stderr warnings

Performance results:
- In-process tests: ~0.6s each (cached even faster)
- exec.Command tests: ~3.7s each
- Speedup: ~10x faster

Kept TestCLI_EndToEnd() that uses exec.Command for end-to-end validation of the actual binary.


Enforce daemon singleton per workspace with file locking

Agent in ~/src/wyvern discovered 4 simultaneous daemon processes running, causing infinite directory recursion (.beads/.beads/.beads/...). Each daemon used relative paths and created nested .beads/ directories.

Root cause: No singleton enforcement. Multiple `bd daemon` processes can start in same workspace.

Expected: One daemon per workspace (each workspace = separate .beads/ dir with bd.sock)
Actual: Multiple daemons can run simultaneously in same workspace

Note: Separate git clones = separate workspaces = separate daemons (correct). Git worktrees share .beads/ and have known limitations (documented, use --no-daemon).

## Fix Summary

Successfully prevented the nested .beads/.beads/ recursion bug by implementing two safeguards:

1. **Path Canonicalization in FindDatabasePath()** (beads.go):
   - Added filepath.Abs() + filepath.EvalSymlinks() to normalize all database paths
   - Prevents relative path edge cases that create nested directories
   - Ensures all daemons see the same canonical path

2. **Nested Directory Detection** (daemon_lifecycle.go):
   - Added explicit check for ".beads/.beads" pattern in setupDaemonLock()
   - Fails fast with clear error message if nested structure detected
   - Provides user hints about proper usage

## Root Cause

The daemon lock (added Oct 22, 2025) correctly prevents simultaneous daemons in the SAME workspace. However, when BEADS_DB used a relative path (e.g., ".beads/beads.db") from inside the .beads directory, FindDatabasePath() would resolve it to a nested path creating a separate workspace:
- First daemon: /workspace/.beads/beads.db
- Second daemon from .beads/: /workspace/.beads/.beads/beads.db ← Different lock file!

## Testing

All acceptance criteria passed:
✅ 1. Second daemon start fails with "daemon already running" error
✅ 2. Killing daemon releases lock, new daemon can start
✅ 3. No infinite .beads/ recursion possible (tested nested BEADS_DB path)
✅ 4. Works with auto-start mechanism

The fix addresses the edge case while maintaining the existing lock mechanism's correctness.


Export doesn't update last_import_hash metadata causing perpetual 'JSONL content has changed' errors

After a successful export, the daemon doesn't update last_import_hash or last_import_mtime metadata. This causes hasJSONLChanged to return true on the next export attempt, blocking with 'refusing to export: JSONL content has changed since last import'.

Related to GH #334.

Scenario:
1. Daemon exports successfully → JSONL updated, hash changes
2. Metadata NOT updated (last_import_hash still points to old hash)
3. Next mutation triggers export
4. validatePreExport calls hasJSONLChanged
5. hasJSONLChanged sees current JSONL hash != last_import_hash
6. Export blocked with 'JSONL content has changed since last import'
7. Issue stuck: can't export, can't make progress

This creates a catch-22 where the system thinks JSONL changed externally when it was the daemon itself that changed it.

Current behavior:
- Import updates metadata (import.go:310-336)
- Export does NOT update metadata (daemon_sync.go:307)
- Result: metadata becomes stale after every export


Add LastBdVersion field to Config struct


Implement content-first idempotent import

## Overview
Phase 4: Refactor import to be content-first and idempotent, ensuring importing same JSONL multiple times always converges correctly.

## Current Problem
Current import is ID-first:
1. Look up by ID
2. If exists, update
3. If not exists, create

This causes issues when:
- Same content arrives with different IDs (renames not detected)
- Multiple rounds of import needed for convergence
- Import order affects final state

## Solution
Make import content-first and idempotent:
1. Hash all incoming and existing issues
2. Match by content hash first (detect renames)
3. Handle ID conflicts second (using global resolution)
4. Ensure importing same data multiple times = no-op

## Implementation Tasks

### 1. Refactor ImportIssues to be content-first
File: internal/importer/importer.go

```go
func ImportIssues(ctx context.Context, dbPath string, store storage.Storage,
    issues []*types.Issue, opts Options) (*Result, error) {

    result := &Result{...}

    sqliteStore, needCloseStore, err := getOrCreateStore(ctx, dbPath, store)
    if err != nil {
        return nil, err
    }
    if needCloseStore {
        defer func() { _ = sqliteStore.Close() }()
    }

    // Phase 1: Compute content hashes for all incoming issues
    for _, issue := range issues {
        issue.ContentHash = issue.ComputeContentHash()
    }

    // Phase 2: Build content hash maps
    incomingByHash := buildHashMap(issues)
    dbIssues, _ := sqliteStore.SearchIssues(ctx, "", types.IssueFilter{})
    dbByHash := buildHashMap(dbIssues)
    dbByID := buildIDMap(dbIssues)

    // Phase 3: Content-first matching
    var newIssues []*types.Issue
    var idConflicts []*CollisionDetail

    for hash, incoming := range incomingByHash {
        if existing, found := dbByHash[hash]; found {
            // Same content exists
            if existing.ID == incoming.ID {
                // Exact match - idempotent case
                result.Unchanged++
            } else {
                // Same content, different ID - rename detected
                // Delete old ID, keep new ID (incoming is canonical)
                if err := handleRename(ctx, sqliteStore, existing, incoming); err != nil {
                    return nil, err
                }
                result.Updated++
            }
        } else {
            // New content - check for ID collision
            if existingWithID, found := dbByID[incoming.ID]; found {
                // ID exists but different content - collision
                idConflicts = append(idConflicts, &CollisionDetail{
                    ID:            incoming.ID,
                    IncomingIssue: incoming,
                    ExistingIssue: existingWithID,
                })
            } else {
                // Truly new issue
                newIssues = append(newIssues, incoming)
            }
        }
    }

    // Phase 4: Resolve ID conflicts using global algorithm
    if len(idConflicts) > 0 {
        if !opts.ResolveCollisions {
            return nil, fmt.Errorf("collision detected")
        }

        idMapping, err := sqlite.ResolveNWayCollisions(ctx, sqliteStore,
            idConflicts, issues)
        if err != nil {
            return nil, err
        }

        if err := applyIDMapping(ctx, sqliteStore, idMapping); err != nil {
            return nil, err
        }

        result.IDMapping = idMapping
        result.Collisions = len(idConflicts)
    }

    // Phase 5: Create new issues
    if len(newIssues) > 0 {
        if err := sqliteStore.CreateIssues(ctx, newIssues, "import"); err != nil {
            return nil, err
        }
        result.Created = len(newIssues)
    }

    // Phase 6: Import dependencies, labels, comments (existing logic)
    // ...

    return result, nil
}
```

### 2. Implement helper functions

```go
// buildHashMap creates a map of content hash → issue
func buildHashMap(issues []*types.Issue) map[string]*types.Issue {
    result := make(map[string]*types.Issue)
    for _, issue := range issues {
        result[issue.ContentHash] = issue
    }
    return result
}

// buildIDMap creates a map of ID → issue
func buildIDMap(issues []*types.Issue) map[string]*types.Issue {
    result := make(map[string]*types.Issue)
    for _, issue := range issues {
        result[issue.ID] = issue
    }
    return result
}

// handleRename handles content match with different IDs
func handleRename(ctx context.Context, s *SQLiteStorage,
    existing *types.Issue, incoming *types.Issue) error {

    // Delete old ID
    if err := s.DeleteIssue(ctx, existing.ID); err != nil {
        return fmt.Errorf("failed to delete old ID %s: %w", existing.ID, err)
    }

    // Create with new ID
    if err := s.CreateIssue(ctx, incoming, "import-rename"); err != nil {
        return fmt.Errorf("failed to create renamed issue %s: %w",
            incoming.ID, err)
    }

    // Update references from old ID to new ID
    idMapping := map[string]string{existing.ID: incoming.ID}
    return updateReferences(ctx, s, idMapping)
}
```

### 3. Add idempotency tests

Test cases:
1. Import same JSONL twice → second import reports all Unchanged
2. Import, modify DB, import again → reports Updated
3. Import with rename, import again → idempotent
4. Import with collision resolution, import again → idempotent

### 4. Update handleCollisions to use new flow
Current handleCollisions in importer.go needs to be updated to:
- Use content-first matching
- Call new ResolveNWayCollisions
- Apply results using ApplyCollisionResolution

## Acceptance Criteria
- Import matches by content hash before checking IDs
- Importing same JSONL multiple times is idempotent (reports Unchanged)
- Rename detection works (same content, different ID)
- ID conflicts resolved using global algorithm
- Result.Unchanged correctly tracks idempotent imports
- TestThreeCloneCollision passes
- All existing import tests still pass

## Testing Strategy

### Unit Tests
- buildHashMap correctly indexes by content hash
- buildIDMap correctly indexes by ID
- handleRename deletes old, creates new, updates references

### Integration Tests
- Import same data twice → idempotent
- Import renamed issue → handled correctly
- Import with collision → resolved globally
- Final pull after 3-way collision → all clones converge

### Property Tests
- Idempotency: Import(x); Import(x) ≡ Import(x)
- Commutativity: Import(a); Import(b) ≡ Import(b); Import(a) (for non-colliding issues)
- Convergence: After N rounds of sync, all clones identical

## Files to Modify
- internal/importer/importer.go (major refactor of ImportIssues)
- internal/importer/importer_test.go (new tests)
- cmd/bd/import_bug_test.go (update for new behavior)

## Dependencies
- Requires bd-cbed9619.5 (ContentHash field)
- Requires bd-cbed9619.4 (read-only detection)
- Requires bd-cbed9619.3 (global resolution)

## Risk Mitigation
Major refactor of import logic. Recommend:
1. Comprehensive tests before modifying
2. Feature flag to enable/disable
3. Keep old import code path for rollback
4. Test with all existing import tests
5. Manual testing with real repositories

## Success Metrics
After this phase:
- TestThreeCloneCollision should PASS
- All clones converge after final pull
- Import is demonstrably idempotent
- No data loss in N-way scenarios


Test SQLite WASM compatibility

Verify modernc.org/sqlite works in WASM target. Child of epic bd-44d0.

## Tasks
- [ ] Compile minimal SQLite test to WASM
- [ ] Test database create/open operations
- [ ] Test query execution
- [ ] Test JSONL import/export
- [ ] Benchmark performance vs native

## Decision Point
If modernc.org/sqlite issues, evaluate ncruces/go-sqlite3 alternative.


Fix Windows test failure: File permissions in TestAtomicWriteFile

On Windows, file permissions work differently. The test expects 0600 but gets 0666. Windows doesn't support Unix-style file permissions in the same way. Need to either skip this check on Windows or adjust expectations.

Test failure: utils_test.go:39: file permissions mismatch: got 666, want 600

Root cause: Windows filesystem doesn't support Unix-style permission bits. Need to use runtime.GOOS check or skip permission validation on Windows.


Implement "bd daemons logs" subcommand

Add command to view daemon logs for a specific workspace. Requires daemon logging to file (may need separate issue for log infrastructure).


Event-driven daemon architecture

Replace 5-second polling sync loop with event-driven architecture that reacts instantly to changes. Eliminates stale data issues while reducing CPU ~60%. Key components: FileWatcher (fsnotify), Debouncer (500ms), RPC mutation events, optional git hooks. Target latency: <500ms (vs 5000ms). See event_driven_daemon.md for full design.

## Implementation Progress

**Completed:**
1. ✅ Mutation events infrastructure (bd-143 equivalent)
   - MutationEvent channel in RPC server
   - Events emitted for all write operations: create, update, close, label add/remove, dep add/remove, comment add
   - Non-blocking emission with dropped event counter

2. ✅ FileWatcher with fsnotify (bd-b0c7f7ef related)
   - Watches .beads/issues.jsonl and .git/refs/heads
   - 500ms debounce
   - Polling fallback if fsnotify unavailable

3. ✅ Debouncer (bd-144 equivalent)
   - 500ms debounce for both export and import triggers
   - Thread-safe trigger/cancel

4. ✅ Separate export-only and import-only functions
   - createExportFunc(): exports + optional commit/push (no pull/import)
   - createAutoImportFunc(): pull + import (no export)
   - Target latency <500ms achieved by avoiding full sync

5. ✅ Dropped events safety net (bd-eef03e0a related)
   - Atomic counter tracks dropped mutation events
   - 60-second health check triggers export if events were dropped
   - Prevents silent data loss from event storms

**Still Needed:**
- Platform-specific tests (bd-69bce74a)
- Integration test for mutation→export latency (bd-140)
- Unit tests for FileWatcher (bd-b0c7f7ef)
- Unit tests for Debouncer (bd-144)
- Event storm stress test (bd-eef03e0a)
- Documentation update (bd-142)

**Next Steps:**
Add comprehensive test coverage before enabling events mode by default.


bd-hv01: Brittle string comparison breaks with JSON field reordering

## Problem
deletion_tracking.go:125 uses string comparison to detect unchanged issues:

```go
if leftLine, existsInLeft := leftIndex[id]; existsInLeft && leftLine == baseLine {
    deletions = append(deletions, id)
}
```

This breaks if:
- JSON field order changes (legal in JSON)
- Timestamps updated by import/export
- Whitespace/formatting changes
- Floating point precision varies

## Example Failure
```json
// baseLine
{"id":"bd-1","priority":1,"status":"open"}
// leftLine (same data, different order)
{"id":"bd-1","status":"open","priority":1}
```
These are semantically identical but string comparison fails.

## Fix
Parse and compare JSON semantically:
```go
func jsonEquals(a, b string) bool {
    var objA, objB map[string]interface{}
    json.Unmarshal([]byte(a), &objA)
    json.Unmarshal([]byte(b), &objB)
    return reflect.DeepEqual(objA, objB)
}
```

## Files Affected
- cmd/bd/deletion_tracking.go:125
- cmd/bd/deletion_tracking.go:134-170 (buildIDToLineMap)


npm package for bd with native binaries

Create an npm package that wraps native bd binaries for easy installation in Claude Code for Web and other Node.js environments.

## Problem
Claude Code for Web sandboxes are full Linux VMs with npm support, but cannot easily download binaries from GitHub releases due to network restrictions or tooling limitations.

## Solution
Publish bd as an npm package that:
- Downloads platform-specific native binaries during postinstall
- Provides a CLI wrapper that invokes the native binary
- Works seamlessly in Claude Code for Web SessionStart hooks
- Maintains full feature parity (uses native SQLite)

## Benefits vs WASM
- ✅ Full SQLite support (no custom VFS needed)
- ✅ All features work identically to native bd
- ✅ Better performance (native vs WASM overhead)
- ✅ ~4 hours effort vs ~2 days for WASM
- ✅ Minimal maintenance burden

## Success Criteria
- npm install @beads/bd works in Claude Code for Web
- All bd commands function identically to native binary
- SessionStart hook documented for auto-installation
- Package published to npm registry


Add index usage verification test for external_ref lookups

Currently we test that idx_issues_external_ref index exists, but we don't verify that it's actually being used by the query planner.

Proposed solution:
- Add test using EXPLAIN QUERY PLAN
- Verify that 'SEARCH TABLE issues USING INDEX idx_issues_external_ref' appears in plan
- Ensures O(1) lookup performance is maintained

Related: bd-1022
Files: internal/storage/sqlite/external_ref_test.go:260


Review and merge open PRs


Add upgrade notification system to bd ready/list


Daemon gets stuck when auto-import blocked by git conflicts

CRITICAL: The daemon enters a corrupt state that breaks RPC commands when auto-import is triggered but git pull fails due to uncommitted changes.

Impact: This is a data integrity and usability issue that could cause users to lose trust in Beads. The daemon silently fails for certain commands while appearing healthy.

Reproduction:
1. Make local changes to issues (creates uncommitted .beads/beads.jsonl)
2. Remote has updates (JSONL newer, triggers auto-import)
3. Daemon tries to pull but fails: 'cannot pull with rebase: You have unstaged changes'
4. Daemon enters bad state - 'bd show' and other commands return EOF
5. 'bd list' still works, daemon process is running, no errors logged

Technical details:
- Auto-import check runs in handleRequest() before processing RPC commands
- When import is blocked, it appears to corrupt daemon state
- Likely: deadlock, unclosed transaction, or storage handle corruption
- Panic recovery (server_lifecycle_conn.go:183) didn't catch anything - not a panic

Required fix:
- Auto-import must not block RPC command execution
- Handle git pull failures gracefully without corrupting state
- Consider: skip auto-import if git is dirty, queue import for later, or use separate goroutine
- Add timeout/circuit breaker for import operations
- Log clear warnings when auto-import is skipped

Without this fix, users in collaborative environments will frequently encounter mysterious EOF errors that require daemon restarts.


Add executable bit validation for git hooks in init.go

**Location:** cmd/bd/init.go:388-415

**Issue:** hooksInstalled() checks for hook marker string but doesn't verify:
- Hook file is actually executable
- Hook has correct shebang line
- Hook hasn't been corrupted/truncated

**Current Code:**
```go
preCommitContent, err := os.ReadFile(preCommit)
if err \!= nil || \!strings.Contains(string(preCommitContent), "bd (beads) pre-commit hook") {
    return false
}
// No executable bit check\!
```

**Impact:** Hooks may appear installed but fail silently because they're not executable.

**Fix:** Add executable bit check:
```go
fileInfo, err := os.Stat(preCommit)
if err \!= nil {
    return false
}
if fileInfo.Mode().Perm() & 0111 == 0 {
    return false  // Not executable
}
```


Auto-configure git merge driver during `bd init`

Enhance `bd init` to optionally set up beads-merge as git merge driver.

**Tasks**:
- Prompt user to install git merge driver
- Configure `.git/config`: `merge.beads.driver "bd merge %A %O %L %R"`
- Create/update `.gitattributes`: `.beads/beads.jsonl merge=beads`
- Add `--skip-merge-driver` flag for non-interactive use
- Update AGENTS.md onboarding section

**Files**:
- `cmd/bd/init.go`
- `.gitattributes` template


Add guidance for self-hosting projects

The contributor-workflow-analysis.md is optimized for OSS contributors making PRs to upstream projects. However, it doesn't address projects like VC that use beads for their own development (self-hosting).

Self-hosting projects differ from OSS contributors:
- No upstream/downstream distinction (they ARE the project)
- May run automated executors (not just humans)
- In bootstrap/early phase (stability matters)
- Single team/owner (not multiple contributors with permissions)

Guidance needed on:
- When self-hosting projects should stay single-repo (default, recommended)
- When they should adopt multi-repo (team planning, multi-phase dev)
- How automated executors should handle multi-repo (if at all)
- Special considerations for projects in bootstrap phase

Examples of self-hosting projects: VC (building itself with beads), internal tools, pet projects


Add bd hooks install command to embed git hooks in binary

Currently git hooks are installed via `examples/git-hooks/install.sh`, which only exists in the beads source repo. Users who install bd via installer/homebrew/npm can't easily install hooks.

**Proposal:**
Add `bd hooks install` command that:
- Embeds hook scripts in the bd binary (using go:embed)
- Installs them to .git/hooks/ in current repo
- Backs up existing hooks
- Makes them executable

**Commands:**
- `bd hooks install` - Install all hooks
- `bd hooks uninstall` - Remove hooks
- `bd hooks list` - Show installed hooks status

**Benefits:**
- Works for all bd users, not just source repo users
- More discoverable (shows in bd --help)
- Consistent with bd workflow
- Can version hooks with bd releases


Audit Current Cache Usage

Understand exactly what code depends on the storage cache

AUDIT COMPLETE

getStorageForRequest() callers: 17 production + 11 test
- server_issues_epics.go: 8 calls
- server_labels_deps_comments.go: 4 calls
- server_export_import_auto.go: 2 calls
- server_compact.go: 2 calls
- server_routing_validation_diagnostics.go: 1 call
- server_eviction_test.go: 11 calls (DELETE entire file)

Pattern everywhere: store, err := s.getStorageForRequest(req) → store := s.storage

req.Cwd usage: Only for multi-repo routing. Local daemon always serves 1 repo, so routing is unused.

MCP server: Uses separate daemons per repo (no req.Cwd usage found). NOT affected by cache removal.

Cache env vars to deprecate:
- BEADS_DAEMON_MAX_CACHE_SIZE (used in server_core.go:63)
- BEADS_DAEMON_CACHE_TTL (used in server_core.go:72)
- BEADS_DAEMON_MEMORY_THRESHOLD_MB (used in server_cache_storage.go:47)

Server struct fields to remove:
- storageCache, cacheMu, maxCacheSize, cacheTTL, cleanupTicker, cacheHits, cacheMisses

Tests to delete:
- server_eviction_test.go (entire file - 9 tests)
- limits_test.go cache assertions

Special consideration: ValidateDatabase endpoint uses findDatabaseForCwd() outside cache. Verify if used, then remove or inline.

Safe to proceed with removal - cache always had 1 entry in local daemon model.


Fix remaining FK constraint failures in AddComment and ApplyCompaction

Follow-up to PR #348 (Fix FOREIGN KEY constraint failed).

The initial fix addressed CloseIssue, UpdateIssueID, and RemoveLabel.
However, `AddComment` (in internal/storage/sqlite/events.go) and `ApplyCompaction` (in internal/storage/sqlite/compact.go) still suffer from the same pattern: inserting an event after an UPDATE without verifying the UPDATE affected any rows.

This causes "FOREIGN KEY constraint failed" errors when operating on non-existent issues, instead of clean "issue not found" errors.

Task:
1. Apply the same fix pattern to `AddComment` and `ApplyCompaction`: check RowsAffected() after UPDATE and before event INSERT.
2. Ensure error messages are consistent ("issue %s not found").
3. Verify with reproduction tests (create a test that calls these methods with a non-existent ID).


Auth tokens expire too quickly

## Summary

[Brief description of the bug]

## Steps to Reproduce

1. Step 1
2. Step 2
3. Step 3

## Expected Behavior

[What should happen]

## Actual Behavior

[What actually happens]

## Environment

- OS: [e.g., macOS 15.7.1]
- Version: [e.g., bd 0.20.1]
- Additional context: [any relevant details]

## Additional Context

[Screenshots, logs, or other relevant information]


Add bd doctor --fix flag to automatically repair issues

Implement a --fix flag for bd doctor that can automatically repair detected issues.

Requirements:
- Add --fix flag to bd doctor command
- Show all fixable issues and prompt for confirmation before applying fixes
- Organize fix implementations under doctor/fix/<type_of_fix>.go
- Each fix type should have its own file (e.g., doctor/fix/hooks.go, doctor/fix/sync.go)
- Display what will be fixed and ask user to confirm (Y/n) before proceeding
- Support fixing issues like:
  - Missing or broken git hooks
  - Sync problems with remote
  - File permission issues
  - Any other auto-repairable issues doctor detects

Implementation notes:
- Maintain separation between detection (existing doctor code) and repair (new fix code)
- Each fix should be idempotent and safe to run multiple times
- Provide clear output about what was fixed
- Log any fixes that fail with actionable error messages


Test reservation expiration and renewal

Verify TTL-based reservation expiration works correctly.

Acceptance Criteria:
- Reserve with short TTL (30s)
- Verify other agents can't claim
- Wait for expiration
- Verify reservation auto-released
- Other agent can now claim
- Test renewal/heartbeat mechanism

File: tests/integration/test_reservation_ttl.py

Implemented comprehensive TTL/expiration test suite in tests/integration/test_reservation_ttl.py

Test Coverage:
✅ Short TTL reservations (30s) - verifies TTL is properly set
✅ Reservation blocking - confirms agent2 cannot claim while agent1 holds reservation
✅ Auto-release after expiration - validates expired reservations are auto-cleaned and become available
✅ Renewal/heartbeat - tests that re-reserving extends expiration time

All 4 tests passing in 56.9s total (including 30s+ wait time for expiration tests).

Mock server implements full TTL management:
- Reservation class with expiration tracking
- Auto-cleanup of expired reservations on each request
- Renewal support (same agent re-reserving)
- 409 conflict for cross-agent reservation attempts


Configure database connection pool limits for daemon mode

Database connection pool not configured for file-based databases when running in daemon mode.

Location: internal/storage/sqlite/sqlite.go:108-116

Problem:
- Daemon is a long-running server handling concurrent RPC requests
- Multiple CLI commands hit same daemon simultaneously
- Go default: unlimited connections (MaxOpenConns=0)
- SQLite IMMEDIATE transactions serialize on write lock
- Can have 100+ goroutines blocked waiting, each holding connection
- Results in connection exhaustion and 'database is locked' errors

Current code only limits in-memory DBs:
if isInMemory {
    db.SetMaxOpenConns(1)
    db.SetMaxIdleConns(1)
}
// File DBs: UNLIMITED connections!

Fix:
if !isInMemory {
    maxConns := runtime.NumCPU() + 1  // 1 writer + N readers
    db.SetMaxOpenConns(maxConns)
    db.SetMaxIdleConns(2)
    db.SetConnMaxLifetime(0)
}

Impact: 'database is locked' errors under concurrent load in daemon mode

Note: NOT an issue for direct CLI usage (each process isolated). Only affects daemon mode where multiple CLI commands share one database pool.

Effort: 1 hour


Extract daemon lifecycle functions to daemon_lifecycle.go


Test Epic 2

## Overview

[Describe the high-level goal and scope of this epic]

## Success Criteria

- [ ] Criteria 1
- [ ] Criteria 2
- [ ] Criteria 3

## Background

[Provide context and motivation]

## Scope

**In Scope:**
- Item 1
- Item 2

**Out of Scope:**
- Item 1
- Item 2


Add AI planning docs management guidance to bd onboard (GH-196)

Enhanced bd onboard command to provide guidance for managing AI-generated planning documents (Claude slop).

Addresses GitHub issue #196: https://github.com/steveyegge/beads/issues/196

Changes:
- Added Managing AI-Generated Planning Documents section to bd onboard
- Recommends using history/ directory for ephemeral planning files
- Updated AGENTS.md to demonstrate the pattern
- Added comprehensive tests

Commit: d46177d


Implement postinstall script for binary download

Create npm/scripts/postinstall.js that downloads platform-specific binaries:

## Platform detection
- Detect os.platform() and os.arch()
- Map to GitHub release asset names:
  - linux-amd64 → bd-linux-amd64
  - linux-arm64 → bd-linux-arm64
  - darwin-amd64 → bd-darwin-amd64
  - darwin-arm64 → bd-darwin-arm64
  - win32-x64 → bd-windows-amd64.exe

## Download logic
- Fetch from GitHub releases: https://github.com/steveyegge/beads/releases/latest/download/${asset}
- Save to npm/bin/bd (or bd.exe on Windows)
- Set executable permissions (chmod +x)
- Handle errors gracefully with helpful messages

## Error handling
- Check for unsupported platforms
- Retry on network failures
- Provide manual download instructions if automated fails
- Skip download if binary already exists (for local development)


Document -short flag in testing guide

Add documentation about the -short flag and how it's used to skip slow tests. Should explain that developers can run 'go test -short ./...' for fast iteration and 'go test ./...' for full coverage.


RPC fast-fail: stat socket before dial, cap timeouts to 200ms

Eliminate 5s delay when daemon socket is missing by:
1. Add os.Stat(socketPath) check before dialing in TryConnect
2. Return (nil, nil) immediately if socket doesn't exist
3. Set default dial timeout to 200ms in TryConnect
4. Keep TryConnectWithTimeout for explicit health/status checks (1-2s)

This prevents clients from waiting through full timeout when no daemon is running.


Add TestNWayCollision for 5+ clones

## Overview
Add comprehensive tests for N-way (5+) collision resolution to verify the solution scales beyond 3 clones.

## Purpose
While TestThreeCloneCollision validates the basic N-way case, we need to verify:
1. Solution scales to arbitrary N
2. Performance is acceptable with more clones
3. Convergence time is bounded
4. No edge cases in larger collision groups

## Implementation Tasks

### 1. Create TestFiveCloneCollision
File: beads_twoclone_test.go (or new beads_nway_test.go)

```go
func TestFiveCloneCollision(t *testing.T) {
    // Test with 5 clones creating same ID with different content
    // Verify all 5 clones converge after sync rounds

    t.Run("SequentialSync", func(t *testing.T) {
        testNCloneCollision(t, 5, "A", "B", "C", "D", "E")
    })

    t.Run("ReverseSync", func(t *testing.T) {
        testNCloneCollision(t, 5, "E", "D", "C", "B", "A")
    })

    t.Run("RandomSync", func(t *testing.T) {
        testNCloneCollision(t, 5, "C", "A", "E", "B", "D")
    })
}
```

### 2. Implement generalized testNCloneCollision
Generalize the 3-clone test to handle arbitrary N:

```go
func testNCloneCollision(t *testing.T, numClones int, syncOrder ...string) {
    t.Helper()

    if len(syncOrder) != numClones {
        t.Fatalf("syncOrder length (%d) must match numClones (%d)",
            len(syncOrder), numClones)
    }

    tmpDir := t.TempDir()

    // Setup remote and N clones
    remoteDir := setupBareRepo(t, tmpDir)
    cloneDirs := make(map[string]string)

    for i := 0; i < numClones; i++ {
        name := string(rune('A' + i))
        cloneDirs[name] = setupClone(t, tmpDir, remoteDir, name)
    }

    // Each clone creates issue with same ID but different content
    for name, dir := range cloneDirs {
        createIssue(t, dir, fmt.Sprintf("Issue from clone %s", name))
    }

    // Sync in specified order
    for _, name := range syncOrder {
        syncClone(t, cloneDirs[name], name)
    }

    // Final pull for convergence
    for name, dir := range cloneDirs {
        finalPull(t, dir, name)
    }

    // Verify all clones have all N issues
    expectedTitles := make(map[string]bool)
    for i := 0; i < numClones; i++ {
        name := string(rune('A' + i))
        expectedTitles[fmt.Sprintf("Issue from clone %s", name)] = true
    }

    for name, dir := range cloneDirs {
        titles := getTitles(t, dir)
        if !compareTitleSets(titles, expectedTitles) {
            t.Errorf("Clone %s missing issues: expected %v, got %v",
                name, expectedTitles, titles)
        }
    }

    t.Log("✓ All", numClones, "clones converged successfully")
}
```

### 3. Add performance benchmarks
Test convergence time and memory usage:

```go
func BenchmarkNWayCollision(b *testing.B) {
    for _, n := range []int{3, 5, 10, 20} {
        b.Run(fmt.Sprintf("N=%d", n), func(b *testing.B) {
            for i := 0; i < b.N; i++ {
                // Run N-way collision and measure time
                testNCloneCollisionBench(b, n)
            }
        })
    }
}
```

### 4. Add convergence time tests
Verify bounded convergence:

```go
func TestConvergenceTime(t *testing.T) {
    // Test that convergence happens within expected rounds
    // For N clones, should converge in at most N-1 sync rounds

    for n := 3; n <= 10; n++ {
        t.Run(fmt.Sprintf("N=%d", n), func(t *testing.T) {
            rounds := measureConvergenceRounds(t, n)
            maxExpected := n - 1
            if rounds > maxExpected {
                t.Errorf("Convergence took %d rounds, expected ≤ %d",
                    rounds, maxExpected)
            }
        })
    }
}
```

### 5. Add edge case tests
Test boundary conditions:
- All N clones have identical content (dedup works)
- N-1 clones have same content, 1 differs
- All N clones have unique content
- Mix of collisions and non-collisions

## Acceptance Criteria
- TestFiveCloneCollision passes with all sync orders
- All 5 clones converge to identical content
- Performance is acceptable (< 5 seconds for 5 clones)
- Convergence time is bounded (≤ N-1 rounds)
- Edge cases handled correctly
- Benchmarks show scalability to 10+ clones

## Files to Create/Modify
- beads_twoclone_test.go or beads_nway_test.go
- Add helper functions for N-clone setup

## Testing Strategy

### Test Matrix
| N Clones | Sync Orders | Expected Result |
|----------|-------------|-----------------|
| 3        | A→B→C       | Pass            |
| 3        | C→B→A       | Pass            |
| 5        | A→B→C→D→E   | Pass            |
| 5        | E→D→C→B→A   | Pass            |
| 5        | Random      | Pass            |
| 10       | Sequential  | Pass            |

### Performance Targets
- 3 clones: < 2 seconds
- 5 clones: < 5 seconds
- 10 clones: < 15 seconds

## Dependencies
- Requires bd-cbed9619.5, bd-cbed9619.4, bd-cbed9619.3, bd-cbed9619.2 to be completed
- TestThreeCloneCollision must pass first

## Success Metrics
- All tests pass for N ∈ {3, 5, 10}
- Convergence time scales linearly (O(N))
- Memory usage reasonable (< 100MB for 10 clones)
- No data corruption or loss in any scenario


Standardize priority flag parsing across all commands

Accept both integer (0-4) and P0-P4 format in all commands.

**Commands to update:**
- bd create: Currently accepts both ✓
- bd update: Currently accepts both ✓
- bd list: Only accepts int
- bd search: Add priority filter (missing entirely)

**Implementation:**
- Create shared priority parsing function
- Support both formats: '0', '1', 'P0', 'P1', etc.
- Case-insensitive ('p0', 'P0')

**Files to modify:**
- cmd/bd/list.go
- cmd/bd/search.go
- Add utility function in internal/util/ or internal/types/

Implementation complete!

Changes made to cmd/bd/list.go:
1. Added validation import
2. Changed priority flag from IntP to registerPriorityFlag (line 428)
3. Changed priority-min/max from Int to String (lines 459-460)
4. Updated priority parsing to use ValidatePriority (lines 90-97, 230-237)
5. Updated priority-min/max parsing to use ValidatePriority (lines 195-210)

Testing verified:
✓ bd list -p P0 works
✓ bd list -p 0 works
✓ bd list --priority-min P1 --priority-max P2 works
✓ bd list --priority-min 1 --priority-max 2 works
✓ Invalid priorities rejected with clear error messages
✓ All tests pass

Both integer (0-4) and P-format (P0-P4) now work consistently across all priority flags in bd list.


Add built-in version tracking to bd

Enhance bd to automatically track its own version in metadata.json and detect upgrades.

## Features to Implement
1. Auto-update metadata.json with 'last_bd_version' field on every bd command
2. Add 'bd upgrade status' - check if version changed since last run
3. Add 'bd upgrade review' - show what's new since last-seen version (not just last 3)
4. Add 'bd upgrade ack' - mark current version as acknowledged
5. Smart detection output when version changes (show hint on bd ready, bd list, etc.)

## Implementation Details
- Store last_bd_version in metadata.json
- Store last_version_check timestamp
- Compare on every bd command (cached check, low overhead)
- Only show notification once per session until ack'd

## Example Output
```
$ bd ready
🔄 bd upgraded from v0.23.0 to v0.24.2 since last use
💡 Run 'bd upgrade review' to see what changed

Ready work: 5 issues
...
```

## Acceptance Criteria
- Version automatically tracked in metadata.json
- Upgrade detection works across sessions
- New bd upgrade subcommands functional
- Non-intrusive notifications (show once, then quiet)


Add mermaid output format for bd dep tree

Add visual dependency graph output using Mermaid format for better visualization of issue relationships.

Example usage:
  bd dep tree --format mermaid <issue-id>
  bd dep tree --format mermaid bd-42 > graph.md

This would output Mermaid syntax that can be rendered in GitHub, documentation sites, or Mermaid live editor.

Implementation notes:
- Add --format flag to dep tree command
- Support 'text' (default) and 'mermaid' formats
- Mermaid graph should show issue IDs, titles, and dependency types
- Consider using flowchart LR or graph TD syntax


Add 'When to use daemon mode' decision tree to daemon.md

**Problem:**
Users (especially local-only developers) see daemon-related messages but don't understand:
- What daemon mode does (git sync automation)
- Whether they need it
- Why they see "daemon_unsupported" messages

Related to issue #349 item #3.

**Current state:**
commands/daemon.md explains WHAT daemon does but not WHEN to use it.

**Proposed addition:**
Add a "When to Use Daemon Mode" section after line 20 in commands/daemon.md with clear decision criteria:

**✅ You SHOULD use daemon mode if:**
- Working in a team with git remote sync
- Want automatic commit/push of issue changes
- Need background auto-sync (5-second debounce)
- Making frequent bd commands (performance benefit)

**❌ You DON'T need daemon mode if:**
- Solo developer with local-only tracking
- Working in git worktrees (use --no-daemon)
- Running one-off commands/scripts
- Debugging database issues

**Local-only users:** Direct mode is perfectly fine. Daemon mainly helps with git sync automation. You can use `bd sync` manually when needed.

**Files to modify:**
- commands/daemon.md (add section after line 20)


Add unit tests for hasJSONLChanged() function

The hasJSONLChanged() function has no unit tests. Should test:
- Normal case: hash matches
- Normal case: hash differs
- Edge case: empty file
- Edge case: missing metadata (first run)
- Edge case: corrupted metadata
- Edge case: file read errors
- Edge case: invalid hash format in metadata

Also add performance benchmarks for large JSONL files.


Add TestNWayCollision for 5+ clones

## Overview
Add comprehensive tests for N-way (5+) collision resolution to verify the solution scales beyond 3 clones.

## Purpose
While TestThreeCloneCollision validates the basic N-way case, we need to verify:
1. Solution scales to arbitrary N
2. Performance is acceptable with more clones
3. Convergence time is bounded
4. No edge cases in larger collision groups

## Implementation Tasks

### 1. Create TestFiveCloneCollision
File: beads_twoclone_test.go (or new beads_nway_test.go)

```go
func TestFiveCloneCollision(t *testing.T) {
    // Test with 5 clones creating same ID with different content
    // Verify all 5 clones converge after sync rounds

    t.Run("SequentialSync", func(t *testing.T) {
        testNCloneCollision(t, 5, "A", "B", "C", "D", "E")
    })

    t.Run("ReverseSync", func(t *testing.T) {
        testNCloneCollision(t, 5, "E", "D", "C", "B", "A")
    })

    t.Run("RandomSync", func(t *testing.T) {
        testNCloneCollision(t, 5, "C", "A", "E", "B", "D")
    })
}
```

### 2. Implement generalized testNCloneCollision
Generalize the 3-clone test to handle arbitrary N:

```go
func testNCloneCollision(t *testing.T, numClones int, syncOrder ...string) {
    t.Helper()

    if len(syncOrder) != numClones {
        t.Fatalf("syncOrder length (%d) must match numClones (%d)",
            len(syncOrder), numClones)
    }

    tmpDir := t.TempDir()

    // Setup remote and N clones
    remoteDir := setupBareRepo(t, tmpDir)
    cloneDirs := make(map[string]string)

    for i := 0; i < numClones; i++ {
        name := string(rune('A' + i))
        cloneDirs[name] = setupClone(t, tmpDir, remoteDir, name)
    }

    // Each clone creates issue with same ID but different content
    for name, dir := range cloneDirs {
        createIssue(t, dir, fmt.Sprintf("Issue from clone %s", name))
    }

    // Sync in specified order
    for _, name := range syncOrder {
        syncClone(t, cloneDirs[name], name)
    }

    // Final pull for convergence
    for name, dir := range cloneDirs {
        finalPull(t, dir, name)
    }

    // Verify all clones have all N issues
    expectedTitles := make(map[string]bool)
    for i := 0; i < numClones; i++ {
        name := string(rune('A' + i))
        expectedTitles[fmt.Sprintf("Issue from clone %s", name)] = true
    }

    for name, dir := range cloneDirs {
        titles := getTitles(t, dir)
        if !compareTitleSets(titles, expectedTitles) {
            t.Errorf("Clone %s missing issues: expected %v, got %v",
                name, expectedTitles, titles)
        }
    }

    t.Log("✓ All", numClones, "clones converged successfully")
}
```

### 3. Add performance benchmarks
Test convergence time and memory usage:

```go
func BenchmarkNWayCollision(b *testing.B) {
    for _, n := range []int{3, 5, 10, 20} {
        b.Run(fmt.Sprintf("N=%d", n), func(b *testing.B) {
            for i := 0; i < b.N; i++ {
                // Run N-way collision and measure time
                testNCloneCollisionBench(b, n)
            }
        })
    }
}
```

### 4. Add convergence time tests
Verify bounded convergence:

```go
func TestConvergenceTime(t *testing.T) {
    // Test that convergence happens within expected rounds
    // For N clones, should converge in at most N-1 sync rounds

    for n := 3; n <= 10; n++ {
        t.Run(fmt.Sprintf("N=%d", n), func(t *testing.T) {
            rounds := measureConvergenceRounds(t, n)
            maxExpected := n - 1
            if rounds > maxExpected {
                t.Errorf("Convergence took %d rounds, expected ≤ %d",
                    rounds, maxExpected)
            }
        })
    }
}
```

### 5. Add edge case tests
Test boundary conditions:
- All N clones have identical content (dedup works)
- N-1 clones have same content, 1 differs
- All N clones have unique content
- Mix of collisions and non-collisions

## Acceptance Criteria
- TestFiveCloneCollision passes with all sync orders
- All 5 clones converge to identical content
- Performance is acceptable (< 5 seconds for 5 clones)
- Convergence time is bounded (≤ N-1 rounds)
- Edge cases handled correctly
- Benchmarks show scalability to 10+ clones

## Files to Create/Modify
- beads_twoclone_test.go or beads_nway_test.go
- Add helper functions for N-clone setup

## Testing Strategy

### Test Matrix
| N Clones | Sync Orders | Expected Result |
|----------|-------------|-----------------|
| 3        | A→B→C       | Pass            |
| 3        | C→B→A       | Pass            |
| 5        | A→B→C→D→E   | Pass            |
| 5        | E→D→C→B→A   | Pass            |
| 5        | Random      | Pass            |
| 10       | Sequential  | Pass            |

### Performance Targets
- 3 clones: < 2 seconds
- 5 clones: < 5 seconds
- 10 clones: < 15 seconds

## Dependencies
- Requires bd-cbed9619.5, bd-cbed9619.4, bd-cbed9619.3, bd-dcd6f14b to be completed
- TestThreeCloneCollision must pass first

## Success Metrics
- All tests pass for N ∈ {3, 5, 10}
- Convergence time scales linearly (O(N))
- Memory usage reasonable (< 100MB for 10 clones)
- No data corruption or loss in any scenario


bd export should detect and prevent stale database exports

## Problem

When `bd export` is run with a stale database (older than issues.jsonl), it silently overwrites the JSONL file with stale data, causing data loss.

## What Happened (vc project)

1. Agent A created 4 new issues and exported to issues.jsonl (commit 99a9d58)
2. Agent A closed an issue and exported again (commit 58b4613) - JSONL now has 4 epics
3. Agent B had stale database (from before step 1)
4. Agent B worked on unrelated issue and exported (commit 0609233)
5. Agent B's export **overwrote issues.jsonl**, removing the 4 epics created by Agent A
6. Required manual recovery by re-exporting from Agent A's correct database

## Expected Behavior

`bd export` should detect that the database is stale and either:
- **Refuse to export** with error message explaining the issue
- **Warn prominently** and require explicit --force flag to override
- **Auto-import first** to sync database before exporting

## How to Detect Staleness

Compare modification times (similar to VC's ValidateDatabaseFreshness):
1. Check .db, .db-wal, .db-shm timestamps (use newest for WAL mode)
2. Check issues.jsonl timestamp
3. If JSONL is newer by >1 second: database is stale

## Suggested Fix

Add staleness check in `bd export`:

```go
func Export(dbPath, jsonlPath string, force bool) error {
    // Check if database is stale
    if !force {
        if err := checkDatabaseFreshness(dbPath, jsonlPath); err != nil {
            return fmt.Errorf("database is stale: %w\n" +
                "Run 'bd import %s' first to sync, or use --force to override",
                err, jsonlPath)
        }
    }

    // Proceed with export...
}
```

## Impact

- **Severity**: High (silent data loss)
- **Frequency**: Happens in multi-agent workflows when agents don't sync
- **Workaround**: Manual recovery (re-export from correct database)

## References

- VC issue tracker: commits 58b4613 -> 0609233 -> c41c638
- VC has similar check: `storage.ValidateDatabaseFreshness()`
- Tolerance: 1 second (handles filesystem timestamp precision)

Fixed with ID-based comparison instead of just count. Now detects:
1. DB has fewer issues than JSONL (count check)
2. DB has different issues than JSONL (ID comparison)

Both scenarios now properly refuse export unless --force is used.

Implementation uses getIssueIDsFromJSONL() to build a set of IDs from JSONL, then checks if any JSONL IDs are missing from DB. Shows specific missing issue IDs in error message.


Issue with labels


Add integration tests for adapter library

Test suite for beads_mail_adapter.py covering all scenarios.

Acceptance Criteria:
- Test enabled mode (server available)
- Test disabled mode (server unavailable)
- Test graceful degradation (server dies mid-operation)
- Test reservation conflicts
- Test message sending/receiving
- Mock HTTP server for testing
- 90%+ code coverage

File: lib/test_beads_mail_adapter.py

Test suite completed with 29 comprehensive tests covering:
- Enabled mode (server available): 10 tests
- Disabled mode (server unavailable): 2 tests
- Graceful degradation: 4 tests
- Reservation conflicts: 2 tests
- Configuration: 5 tests
- Health check scenarios: 3 tests
- HTTP error handling: 3 tests

**Performance**: All tests run in 10ms (fast!)

**Coverage highlights**:
✅ Server health checks (ok, degraded, error, timeout)
✅ All API operations (reserve, release, notify, check_inbox, get_reservations)
✅ HTTP errors (404, 409 conflict, 500, 503)
✅ Network errors (timeout, connection refused)
✅ Malformed responses (bad JSON, empty body, plain text errors)
✅ Environment variable configuration
✅ Graceful degradation when server dies mid-operation
✅ Conflict handling with both JSON and plain text errors
✅ Dict wrapper responses ({"messages": [...]} and {"reservations": [...]})
✅ Custom TTL for reservations
✅ Default agent name fallback

No external dependencies, no slow integration tests, just fast unit tests with mocks.


Create cmd/bd/daemon_debouncer.go (~60 LOC)

Implement Debouncer to batch rapid events into single action. Default 500ms, configurable via BEADS_DEBOUNCE_MS. Thread-safe with mutex.