Phase 5.2: Ephemeral error handling and recovery

Handle edge cases in ephemeral molecule lifecycle.

## Scenarios

### Agent dies mid-molecule
- Ephemeral state persists
- Witness detects stall (no heartbeat)
- Options:
  a. Nudge agent to resume
  b. Reassign to new agent
  c. Escalate to Mayor

### Squash fails
- Retry with exponential backoff
- If persistent failure, escalate
- Don't lose the ephemeral state until squash succeeds

### Orphaned molecules
- Molecule started, never completed
- gt doctor detects (>24h old with no activity)
- Options:
  a. Manual review
  b. Auto-abandon with 'abandoned' digest
  c. Reassign

### Ephemeral repo corruption
- Re-init from scratch
- Active molecules are lost
- Main beads is source of truth for assigned work

## Implementation

Add error handling to:
- bd mol bond (handle init failures)
- bd squash (retry logic)
- gt doctor (recovery suggestions)


inbox-check

Handle callbacks from agents. Check gt mail inbox, process lifecycle requests.


Update templates for Propulsion Principle

Overhaul agent prompts to embody the Universal Gas Town Propulsion Principle:

> If you find something on your hook, YOU RUN IT.

Templates to update:
- [ ] deacon.md.tmpl - Check hook first, no decision logic
- [ ] polecat.md.tmpl - Propulsion startup, follow molecule
- [ ] witness.md.tmpl - Sling wisps when spawning agents
- [ ] refinery.md.tmpl - Accept slung epics

Key changes:
1. Remove 'should I run this?' decision points
2. Add 'check your hook' as step 1 of startup
3. Make molecule-following the default mode
4. Simplify - agents don't think, they execute


Merge: gt-3x1

branch: polecat/Slit
target: main
source_issue: gt-3x1
rig: gastown


Architecture: Decentralized rig structure with per-rig agents

## Decision

Adopt decentralized architecture where each rig contains all its agents (mayor/, witness/, refinery/, polecats/) rather than centralizing mayor clones at town level.

## Town Level Structure

```
~/ai/                              # Town root
├── config/                        # Town config (VISIBLE, not hidden)
│   ├── town.json                  # {"type": "town"}
│   ├── rigs.json                  # Registry of managed rigs
│   └── federation.json            # Wasteland config (future)
│
├── mayor/                         # Mayor's HOME at town level
│   ├── CLAUDE.md
│   ├── mail/inbox.jsonl
│   └── state.json
│
└── <rigs>/                        # Managed projects
```

## Rig Level Structure (e.g., wyvern)

```
wyvern/                            # Rig = clone of project repo
├── .git/info/exclude              # Gas Town adds: polecats/ refinery/ witness/ mayor/
├── .beads/                        # Beads (if project uses it)
├── [project files]                # Clean project code on main
│
├── polecats/                      # Worker clones
│   └── <name>/                    # Each is a git clone
│
├── refinery/
│   ├── rig/                       # Refinery's clone
│   ├── state.json
│   └── mail/inbox.jsonl
│
├── witness/                       # NEW: Per-rig pit boss
│   ├── rig/                       # Witness's clone
│   ├── state.json
│   └── mail/inbox.jsonl
│
└── mayor/
    ├── rig/                       # Mayor's clone for this rig
    └── state.json
```

## Key Decisions

1. **Visible config dir**: `config/` not `.gastown/` (models don't find hidden dirs)
2. **Witness per-rig**: Each rig has its own Witness (pit boss) with its own clone
3. **Mayor decentralized**: Mayor's clones live IN each rig at `<rig>/mayor/rig/`
4. **Minimal invasiveness**: Only `.git/info/exclude` modified, no commits to project
5. **Clone subdir name**: Keep `rig/` for consistency (refinery/rig/, witness/rig/, mayor/rig/)

## Role Detection

- Town root or mayor/ → Mayor (town level)
- Rig root → Mayor (canonical main)
- <rig>/mayor/rig/ → Mayor (rig-specific)
- <rig>/refinery/rig/ → Refinery
- <rig>/witness/rig/ → Witness
- <rig>/polecats/<name>/ → Polecat

## Migration from PGT

- `mayor/rigs/<rig>/` → `<rig>/mayor/rig/`
- `<rig>/town/` → eliminated (rig root IS the clone)
- Add `witness/` to each rig


Track merge requests as beads (type=merge-request)

Currently MRs are tracked in .gastown/refinery.json. For HOP audit trail and entity CV tracking, merge requests should be Beads entries with type=merge-request. This enables:
- Full audit trail of what was merged, when, by whom
- Entity chain contributions (who validated what)
- Cross-rig visibility of merge activity

The refinery would create an MR bead when work enters the queue, update status as it progresses (open → in_progress → merged/rejected).

Part of Beads-as-data-plane vision from HOP.


Update documentation for new config architecture

Update docs to reflect new structure:
- docs/architecture.md: Directory structure section
- CLAUDE.md files: Config references
- Add docs/configuration.md with full reference


Spawn inject: Enter not submitted after multiline paste

When gt spawn injects a multiline context (85+ lines), Claude Code shows
'[Pasted text #1 +85 lines]' but the prompt is not submitted.

The tmux SendKeys function does include 'Enter' but it appears to not work
for long pasted text:

```go
func (t *Tmux) SendKeys(session, keys string) error {
    _, err := t.run("send-keys", "-t", session, keys, "Enter")
    return err
}
```

Possible fixes:
1. Use tmux paste-buffer instead of send-keys for long text
2. Send Enter separately after the text
3. Use bracketed paste mode correctly

Reproduction:
```bash
gt spawn gastown/Nux --issue gt-u1j.13 --create
# Session shows pasted text but waits at prompt
```


gt nudge should accept partial/fuzzy session names

Currently gt nudge requires the exact tmux session name (e.g., gt-gastown-crew-max). Should be more forgiving:

1. Accept partial matches when unambiguous (e.g., 'max' → gt-gastown-crew-max)
2. Accept shorthand like 'gastown/max' or 'crew/max'
3. Show helpful error with suggestions when ambiguous

Examples that should work:
- gt nudge max '...' → matches gt-gastown-crew-max
- gt nudge gastown/max '...' → matches gt-gastown-crew-max
- gt nudge beads-dave '...' → matches gt-beads-crew-dave


Merge execution: merge, test, push

Implement the actual merge execution.

Steps:
1. git checkout <mr.target>
2. git merge <mr.branch> --no-ff -m 'Merge <branch>: <title>'
3. If config.run_tests:
   - Run test_command (from config)
   - If failed: git reset --hard HEAD~1, return Failure(tests_failed)
4. git push origin <mr.target>
5. Return Success(merge_commit=HEAD)

Configuration:
- run_tests: bool (default true)
- test_command: string (default 'go test ./...')

Handle push failures with retry logic.

Reference: docs/merge-queue-design.md#process-merge-steps


Merge: gt-3x0z.2

branch: polecat/nux
target: main
source_issue: gt-3x0z.2
rig: gastown


Epic: Refinery Engineer Autonomy

Make Refinery Engineer fully autonomous:

## Goal
Refinery can run indefinitely, processing all polecat work through merge queue, cycling sessions as needed, without human intervention.

## Key Components
1. Role prompting (CLAUDE.md, templates)
2. Handoff mechanism (pinned beads)
3. Context detection (gt prime)
4. Communication protocol (Witness, Deacon)
5. Future: Merge orchestration plugins

## Success Criteria
- Refinery starts, reads handoff, knows what to do
- Processes merges sequentially with conflict resolution
- Cycles sessions cleanly via Deacon
- Communicates results to Witness
- No work left behind


Refinery background daemon mode

Refinery currently only works in foreground mode. Background daemon is stubbed.

## Current State
manager.go line 128-129:
```go
// Background mode: spawn a new process
// For MVP, we just mark as running - actual daemon implementation in gt-ov2
return nil
```

## Requirements

### 1. Background Process Spawning
```go
func (m *Manager) Start(foreground bool) error {
    if !foreground {
        // Spawn gt refinery start --foreground as subprocess
        cmd := exec.Command(os.Args[0], "refinery", "start", m.rig.Name, "--foreground")
        cmd.Start()  // Don't wait
        // Record PID
    }
}
```

### 2. PID File Management
- Write PID to .gastown/refinery.pid
- Check PID validity on status
- Clean up stale PID files

### 3. Log Output
- Redirect stdout/stderr to .gastown/refinery.log
- Log rotation (optional for MVP)

### 4. Graceful Shutdown
- Handle SIGTERM/SIGINT
- Complete current merge before exit
- Update state to stopped

### 5. Health Check
- Process existence check via kill -0
- Optional: heartbeat file with timestamp

## Files to Modify
- internal/refinery/manager.go: Start(), Status(), process spawning

## Acceptance Criteria
- [ ] gt refinery start <rig> spawns background process
- [ ] gt refinery status shows running with PID
- [ ] gt refinery stop sends SIGTERM and waits
- [ ] Logs written to .gastown/refinery.log
- [ ] Survives terminal close


detectSender() doesn't recognize crew workers

## Problem

detectSender() in internal/cmd/mail.go only checks for /polecats/ directories. Crew workers in /crew/<name>/ fall through to the default 'mayor/', so:
- gt mail inbox shows mayor's inbox instead of the crew worker's
- gt mail send sets the wrong From address

## Fix

Add crew worker detection before the /polecats/ check:

if strings.Contains(cwd, "/crew/") {
    parts := strings.Split(cwd, "/crew/")
    ...
    return fmt.Sprintf("%s/crew/%s", rigName, crewMember)
}

## Affected
- Any crew worker running gt mail inbox without explicit address
- Crew worker handoffs (wrong sender)


gt install command: Create workspace structure

Create Gas Town workspace structure.

## Command

```
gt install [path]
```

If path omitted, uses current directory.

## Created Structure

```
<path>/
├── config/
│   ├── town.json      # {"type": "town", "version": 1, ...}
│   └── rigs.json      # {"version": 1, "rigs": {}}
│
└── mayor/
    ├── CLAUDE.md      # Mayor role prompting (from template)
    ├── mail/
    │   └── inbox.jsonl  # Empty inbox
    └── state.json     # Initial mayor state
```

## Implementation

```go
func Install(path string, opts InstallOptions) error

type InstallOptions struct {
    TownName string  // defaults to directory name
    Force    bool    // overwrite existing
}
```

## Steps

1. Validate path (exists, writable)
2. Check not already a town (unless --force)
3. Create config/ directory
4. Write town.json with name and timestamp
5. Write empty rigs.json
6. Create mayor/ directory structure
7. Write CLAUDE.md from template
8. Create empty inbox.jsonl
9. Write initial state.json

## Error Cases

- Path does not exist: Create it (like mkdir -p)
- Already a town: Error unless --force
- Permission denied: Clear error message
- Inside existing town: Warn (nested towns not recommended)

## Templates

Mayor CLAUDE.md comes from embedded template (see gt-u1j.20).


mol-deacon-patrol

Deacon patrol molecule template. Label: template


TIDY UP: Your previous work (gt-odvf: bd mol CLI docs) wa...

TIDY UP: Your previous work (gt-odvf: bd mol CLI docs) was already merged to main. Check your git status is clean, sync beads, and if nothing to do, just run 'gt done'.


CLI: cleanup commands for stale state

Cleanup commands for recovering from stale state.

## Commands

### gt cleanup <polecat>
Clean stale state for specific polecat.
```
gt cleanup <rig>/<polecat> [--dry-run]
```

Actions:
- Remove orphaned state.json if clone missing
- Clear stale session references
- Reset stuck state (working → idle after timeout)

### gt cleanup --all
Clean all polecats in workspace.
```
gt cleanup --all [--dry-run]
```

## Implementation
```go
func CleanupPolecat(rigName, polecatName string, dryRun bool) (*CleanupResult, error)

type CleanupResult struct {
    OrphanedStateRemoved bool
    SessionsCleared      int
    StateReset           bool
    Warnings             []string
}
```

## Overlap with Doctor
- Doctor diagnoses and offers --fix
- Cleanup is more aggressive state recovery
- Consider merging into doctor --fix

## New File
internal/cmd/cleanup.go

## Acceptance Criteria
- [ ] Removes orphaned state files
- [ ] Clears stale session refs
- [ ] --dry-run shows what would happen
- [ ] Reports all actions taken


Phase 1.4: Basic patrol runner in Deacon

Deacon CLAUDE.md and prime context for patrol execution.

## Deacon Context
- Update Deacon CLAUDE.md with patrol instructions
- On wake: check pinned bead for attachment
- If attached: resume molecule from current step
- Execute steps, close each when done
- On final step: burn molecule, go naked

## gt prime Enhancement
- Detect if agent has attached molecule
- Show molecule progress in prime output
- Include patrol-specific instructions

Depends: gt-rana.3


Swarm learning: Refinery merge queue automation

Manually merging 15 polecat branches was painful and error-prone. Refinery should automate: detect completed work, run tests, merge to main, handle conflicts. This is core Refinery value prop.


Witness Patrol Molecule

Create mol-witness-patrol molecule for witness heartbeat loop.

Similar to DeaconPatrolMolecule but for per-rig witness duties.

## Steps
1. inbox-check - Process witness mail
2. survey-workers - List polecats, check status
3. inspect-workers - Capture pane output, assess state
4. plugin-run - Execute plugins from <rig>/plugins/witness/
5. decide-actions - Determine nudges, escalations
6. execute-actions - Send nudges, process shutdowns
7. context-check - Check own context, handoff if needed
8. loop-or-exit - Continue or cycle

The plugin-run step enables user customization of the patrol loop.


Patrol System: Agent lifecycle loops with attachments

Enable Gas Town agents to run continuous patrols, survive crashes, and hand off work across sessions.

## Core Concepts
- **Attachments**: Molecules bound to agent's pinned bead until complete
- **Patrols**: Cyclic molecules that loop (deacon, witness, refinery)
- **Quiescent**: Agents that sleep until triggered (witness, refinery)

## Design Doc
See docs/patrol-system-design.md

## Phases
Phase 1: Foundation (attachment field, daemon detection, mol-deacon-patrol)
Phase 2: Quiescent Agents (wake triggers, witness/refinery patrols)
Phase 3: Callbacks and Plugins (mail protocol, plugin runner)
Phase 4: Polish (gt patrol status, metrics, tuning)

## Key Decisions
- Attachment as field on pinned bead (not edge type, for now)
- Mail-based orchestration for all callbacks
- Queue replacement for heartbeat delivery (not pile-up)
- Burn and respawn for patrol loops (not in-place reset)


Merge: gt-qna4

branch: polecat/capable
target: main
source_issue: gt-qna4
rig: gastown


Merge polecat/rictus: Add molecule phase lifecycle diagram

Branch: polecat/rictus

Adds molecule phase lifecycle diagram to architecture.md showing Proto → Mol/Wisp → Digest state transitions with the 'states of matter' metaphor. Also documents when to use Mol (durable) vs Wisp (ephemeral).

Closes: gt-c6zs


gt mail send should tmux-notify recipient

## Problem

When mail is sent via gt mail send, the recipient session does not get a tmux notification. In Python Gas Town (PGT), mail delivery triggers a tmux display-message or similar notification so the agent knows mail arrived.

## Expected Behavior

When gt mail send <addr> is called:
1. Mail is delivered to recipient inbox
2. If recipient has an active tmux session, send notification
3. Notification should be visible (display-message or bell)

## Current Behavior

Mail is delivered but no notification. Agent has to poll inbox to discover new mail.

## Impact

- Agents miss time-sensitive messages
- Heartbeat pokes from daemon will not wake agents
- Coordination is slower (polling vs push)

## Implementation Notes

After successful mail delivery, check if recipient has active session:
- gt session list can identify active sessions
- tmux display-message or send-keys can notify
- Could inject a visible prompt like "[MAIL] New message from <sender>"

## Reference

Check PGT implementation for how it handles this.


Work on gt-fix-bugs: Fix blocking infrastructure bugs. Se...

Work on gt-fix-bugs: Fix blocking infrastructure bugs. See issue for details. Run 'bd show gt-fix-bugs' to see the full issue.


Add crew lifecycle support to Deacon

Currently crew sessions (like gastown/crew/max, beads/crew/dave) are marked as 'human-managed' and excluded from automated lifecycle.

## Current State
- `getManager(RoleCrew)` returns `"human"` (handoff.go:273)
- `gt handoff` for crew just prints a message, no lifecycle request sent
- Crew cannot request automated refresh from Deacon

## Desired State
Crew members should be able to request lifecycle actions from Deacon:
- `gt handoff --cycle` sends request to Deacon, which kills/restarts the crew session
- Useful when: context full, running molecules that need fresh session, automation

## Implementation
1. Change `getManager(RoleCrew)` to return `"deacon/"` (or new crew manager)
2. Teach Deacon to recognize crew session naming pattern
3. Add crew to Deacon's respawn loop handling
4. Test with `gt nudge` for reliable message delivery

## Use Case
Running a molecule (e.g., version-bump) and discovering mid-workflow that a fresh session is needed. Agent should be able to request refresh automatically rather than requiring human intervention.

## Related
- gt nudge: reliable message delivery to Claude sessions
- bd mol bond: molecule instantiation (coming in beads)


Mail system: JSONL inbox, delivery, tmux injection

Refactor mail system to wrap bd mail commands.

## Status

Current implementation uses JSONL files directly. Now that Beads mail is available (gt-r01 closed), refactor to use bd mail as the backend.

## Implementation

Replace internal/mail/* with thin wrappers around bd CLI:

```go
// Send wraps: bd mail send <to> -s <subject> -m <body>
func (r *Router) Send(msg *Message) error

// List wraps: bd mail inbox --json
func (m *Mailbox) List() ([]*Message, error)

// Get wraps: bd mail read <id> --json
func (m *Mailbox) Get(id string) (*Message, error)

// MarkRead wraps: bd mail ack <id>
func (m *Mailbox) MarkRead(id string) error
```

## Address Translation

GGT addresses → Beads recipients:
- `mayor/` → `mayor`
- `<rig>/refinery` → `<rig>-refinery`
- `<rig>/<polecat>` → `<rig>-<polecat>`

## Tmux Notification

Keep the tmux injection for --notify flag. After bd mail send, optionally inject notification into tmux session.

## Migration

No migration needed - bd mail creates messages as beads issues with type=message. Old JSONL inboxes can be ignored or cleaned up.

## Dependencies

- gt-r01: CLOSED (Beads mail available)
- gt-u1j.4: Tmux wrapper (for notifications)


gt mq integration status: show integration branch status

Implement 'gt mq integration status <epic>' command.

Display:
- Integration branch name and creation date
- Commits ahead of main
- MRs merged to integration (closed)
- MRs pending (open, targeting integration)
- Comparison: main..integration/<epic>

Output example:
  Integration: integration/gt-auth-epic
  Created: 2025-12-17
  Ahead of main: 5 commits

  Merged MRs (3):
    gt-mr-001  Fix login timeout
    gt-mr-002  Fix session expiry
    gt-mr-003  Update auth config

  Pending MRs (1):
    gt-mr-004  Update auth tests (in_progress)

Reference: docs/merge-queue-design.md#integration-branches


Document harness concept in docs/harness.md

Create comprehensive harness documentation:
- What is a harness (installation directory)
- Recommended structure and naming
- .beads/redirect for default project
- config/ contents (rigs.json, town.json)
- Mayor home vs rig-level mayor/
- Example configurations
- Relationship to rigs


CLI: witness commands (start, stop, status)

Witness daemon CLI commands.

## Commands

### gt witness start
Start the witness daemon for a rig.
```
gt witness start <rig> [--interval <seconds>]
```
- Starts background daemon process
- Default heartbeat interval: 30s
- Logs to <rig>/witness/witness.log

### gt witness stop
Stop the witness daemon.
```
gt witness stop <rig>
```
- Graceful shutdown
- Completes current heartbeat cycle

### gt witness status
Show witness status.
```
gt witness status <rig> [--json]
```
Output:
- Running/stopped
- Last heartbeat time
- Polecats being monitored
- Recent nudges/escalations

### gt witness logs
View witness logs.
```
gt witness logs <rig> [--follow] [--lines <n>]
```
- --follow: Continuous output (like tail -f)
- --lines: Number of lines (default 50)

## Daemon Management

Witness runs as background process:
- PID stored in <rig>/witness/witness.pid
- Uses nohup for persistence
- Logs structured JSON events

## Implementation

```go
var witnessCmd = &cobra.Command{Use: "witness"}
witnessCmd.AddCommand(startCmd, stopCmd, statusCmd, logsCmd)
```

Start launches daemon via exec, status reads PID file and pings process.


Direct test

Testing direct bd create


Merge: gt-5af.2

branch: polecat/Doof
target: main
source_issue: gt-5af.2
rig: gastown


Define Engineer as the Refinery agent role

Clarify the distinction:

- **Refinery** = place/module/directory/workspace
  - `<rig>/refinery/` directory structure
  - `gt refinery start/stop/status` commands
  - tmux session name: `refinery` or `<rig>-refinery`

- **Engineer** = role/agent who works in the Refinery
  - CLAUDE.md prompting: "You are an Engineer..."
  - Documentation: "The Engineer processes merge requests..."
  - Mail address: `<rig>/engineer` (or `<rig>/refinery`?)

Updates needed:
- Add Engineer role description to docs
- Update CLAUDE.md templates for refinery agents
- Keep `gt refinery` commands as-is (they manage the place)
- Internal code stays `internal/refinery/` (the module)

Future consideration: Multiple Engineers in one Refinery for parallel merge processing.


MQ config schema: merge_queue section in rig config.json

Define and implement merge_queue configuration in rig config.

Schema:
{
  "merge_queue": {
    "enabled": true,
    "target_branch": "main",
    "integration_branches": true,
    "on_conflict": "assign_back",  // or "auto_rebase"
    "run_tests": true,
    "test_command": "go test ./...",
    "delete_merged_branches": true,
    "retry_flaky_tests": 1,
    "poll_interval": "30s",
    "max_concurrent": 1
  }
}

Implement:
- Config loading in rig package
- Default values
- Validation

Reference: docs/merge-queue-design.md#configuration


Mayor handoff mail template

Add MAYOR_HANDOFF mail template to templates.py.

## Template Function

def mayor_handoff(
    active_swarms: List[SwarmStatus],
    rig_status: Dict[str, RigStatus],
    pending_escalations: List[Escalation],
    in_flight_decisions: List[Decision],
    recent_actions: List[str],
    delegated_work: List[DelegatedItem],
    user_requests: List[str],
    next_steps: List[str],
    warnings: Optional[str] = None,
    session_duration: Optional[str] = None,
) -> Message:
    metadata = {
        'template': 'MAYOR_HANDOFF',
        'timestamp': datetime.utcnow().isoformat(),
        'session_duration': session_duration,
        'active_swarm_count': len(active_swarms),
        'pending_escalation_count': len(pending_escalations),
    }
    # ... format sections ...
    return Message.create(
        sender='mayor/',
        recipient='mayor/',
        subject='Session Handoff',
        body=body,
        priority='high',
    )

## Metadata Fields

- template: MAYOR_HANDOFF
- timestamp: ISO format
- session_duration: Human readable
- active_swarm_count: Number of active swarms
- pending_escalation_count: Number of escalations

## Mail Priority

Use priority='high' to ensure handoff is seen on startup.


mol-polecat-work

Full polecat lifecycle from assignment to decommission.

This proto enables nondeterministic idempotence for polecat work.
A polecat that crashes after any step can restart, read its molecule state,
and continue from the last completed step. No work is lost.

Variables:
- {{issue}} - The source issue ID being worked on


Swarm state persistence: manifest + state + events

Upgrade swarm persistence to match PGT pattern.

## Current State
Single .gastown/swarms.json with all swarms.

## Target State (per-swarm)
```
.gastown/swarms/
└── <swarm-id>/
    ├── manifest.json  # Immutable config
    ├── state.json     # Mutable progress
    ├── events.jsonl   # Audit log
    └── report.md      # Generated report
```

## File Schemas

### manifest.json (immutable after creation)
```json
{
  "id": "sw-1",
  "title": "Epic description",
  "epic_id": "gt-abc",
  "rig": "gastown",
  "base_commit": "abc123",
  "integration_branch": "swarm/sw-1",
  "target_branch": "main",
  "workers": ["Toast", "Nux"],
  "tasks": [{"id": "gt-xyz", "title": "..."}],
  "created_at": "2024-01-01T00:00:00Z"
}
```

### state.json (mutable)
```json
{
  "state": "active",
  "task_states": {
    "gt-xyz": {"state": "merged", "assignee": "Toast"}
  },
  "updated_at": "2024-01-01T01:00:00Z",
  "error": null
}
```

### events.jsonl (append-only audit)
```jsonl
{"event": "created", "ts": "...", "data": {...}}
{"event": "task_assigned", "ts": "...", "data": {...}}
{"event": "task_merged", "ts": "...", "data": {...}}
```

## Benefits
- Audit trail via events.jsonl
- Manifest immutability prevents corruption
- Cleaner separation of concerns
- Per-swarm isolation

## Migration
Keep backward compat with swarms.json during transition.

## Files to Modify
- internal/swarm/manager.go: Refactor persistence
- internal/cmd/swarm.go: SwarmStore → directory-based

## Acceptance Criteria
- [ ] Per-swarm directory structure
- [ ] Events logged to JSONL
- [ ] Manifest immutable after creation
- [ ] List command aggregates from directories


gt uninstall: Clean removal of Gas Town harness

Add 'gt uninstall' command to cleanly remove a Gas Town installation.

Should:
- Remove harness directory structure
- Optionally preserve rigs/data with --keep-data flag
- Warn about running sessions
- Clean up any global config references


CloudRun cost tracking: Usage monitoring and limits

## Overview

Track Cloud Run usage costs and enforce spending limits.

## Cost Model

Cloud Run pricing (approximate):
- CPU: ~$0.000024/vCPU-second
- Memory: ~$0.0000025/GiB-second
- Requests: ~$0.40/million

For 5-minute worker (2 vCPU, 4GB):
- CPU: 300 × 2 × $0.000024 = $0.0144
- Memory: 300 × 4 × $0.0000025 = $0.003
- **Total: ~$0.017 per session**

## Implementation

```go
type CostTracker struct {
    cpuRate    float64  // per vCPU-second
    memRate    float64  // per GiB-second
    sessions   []SessionCost
    mu         sync.RWMutex
}

type SessionCost struct {
    WorkerID  string
    StartTime time.Time
    EndTime   time.Time
    CPUs      float64
    MemoryGiB float64
}

func (t *CostTracker) RecordSession(workerID string, start, end time.Time, cpus, mem float64) {
    t.mu.Lock()
    defer t.mu.Unlock()
    t.sessions = append(t.sessions, SessionCost{...})
}

func (t *CostTracker) CurrentCost() float64 {
    t.mu.RLock()
    defer t.mu.RUnlock()
    var total float64
    for _, s := range t.sessions {
        duration := s.EndTime.Sub(s.StartTime).Seconds()
        total += duration * s.CPUs * t.cpuRate
        total += duration * s.MemoryGiB * t.memRate
    }
    return total
}
```

## Cost Cap Enforcement

```go
func (o *CloudRunOutpost) Spawn(...) (Worker, error) {
    if o.costCap > 0 && o.costTracker.CurrentCost() >= o.costCap {
        return nil, ErrCostCapExceeded
    }
    // ... spawn worker
}
```

## Config

```yaml
outposts:
  - name: cloudrun-burst
    type: cloudrun
    cost_cap_hourly: 5.00   # Stop spawning if hourly cost exceeds $5
    cost_cap_daily: 50.00   # Daily limit
```

## CLI

```bash
gt outpost status cloudrun-burst
# Shows: Cost (today): $0.42 / $50.00 cap
```

## Files

- `internal/cloudrun/cost.go`

## Dependencies

Depends on: gt-9a2.8 (basic CloudRunOutpost)


Session pre-shutdown checks

Session stop should verify clean state before killing, like PGT.

## Pre-Shutdown Checks

### 1. Git Working Tree Clean
```go
func checkGitClean(clonePath string) error {
    // git status --porcelain
    // Fail if any output
}
```

### 2. All Commits Pushed
```go
func checkCommitsPushed(clonePath string) error {
    // git log origin/HEAD..HEAD
    // Fail if any unpushed commits
}
```

### 3. Assigned Issues Handled
```go
func checkIssuesHandled(polecat *Polecat) error {
    // If polecat.Issue != "", check if closed or reassigned
}
```

### 4. Beads Synced
```go
func checkBeadsSynced(clonePath string) error {
    // bd sync --status in clone directory
}
```

## Behavior on Failure
1. First attempt: Nudge worker to fix
2. Retry up to 3 times with delay
3. After retries: Escalate to Witness/Mayor

## Integration
Modify internal/session/manager.go Stop():
```go
func (m *Manager) Stop(polecat string, force bool) error {
    if !force {
        if err := m.runPreShutdownChecks(polecat); err != nil {
            return fmt.Errorf("pre-shutdown checks failed: %w", err)
        }
    }
    // existing stop logic
}
```

## Flags
- --force: Skip checks
- --grace-period N: Time to wait for fixes

## Dependencies
- Ties into gt-69l (hook system) - can be hook-based
- Ties into gt-f8v (Witness pre-kill verification)

## Acceptance Criteria
- [ ] Stop fails if uncommitted changes (without --force)
- [ ] Stop fails if unpushed commits
- [ ] Clear error messages with fix instructions
- [ ] --force bypasses all checks


gt prime should detect mayor role from any rig's mayor/ folder

Currently gt prime only detects the Mayor role when run from town root (~/gt). It should also detect Mayor when run from:
- ~/gt/gastown/mayor/rig (rig's internal mayor dir)
- Any path containing /mayor/ under a rig

This would allow the mayor session to work correctly regardless of which rig directory it's attached to.


Phase 4.1: mol-deacon-patrol uses ephemeral

Deacon patrol cycles run as ephemeral molecules.

## Current Deacon Loop

```
while running:
    check_heartbeat()
    check_mail()
    sleep(interval)
```

## Molecule-Based Loop

```
while running:
    mol = bd mol bond mol-deacon-patrol-cycle --ephemeral
    execute_cycle(mol):
        check_heartbeat()
        check_mail()
        log_status()
    summary = generate_cycle_summary()
    bd squash mol --summary summary
    sleep(interval)
```

## Benefits

- Each cycle is tracked
- Digests show daemon health over time
- Can query: 'show me patrol cycles from last hour'
- Crash mid-cycle → ephemeral shows where we were


Config package: Config, State types and JSON serialization

Config and state types with JSON serialization.

## Town Config (config/town.json)

```go
type TownConfig struct {
    Type      string    `json:"type"`       // "town"
    Version   int       `json:"version"`    // schema version
    Name      string    `json:"name"`       // town identifier
    CreatedAt time.Time `json:"created_at"`
}
```

## Rigs Registry (config/rigs.json)

```go
type RigsConfig struct {
    Version int                `json:"version"`
    Rigs    map[string]RigEntry `json:"rigs"`
}

type RigEntry struct {
    GitURL   string    `json:"git_url"`
    AddedAt  time.Time `json:"added_at"`
    BeadsConfig *BeadsConfig `json:"beads,omitempty"`
}

type BeadsConfig struct {
    Repo   string `json:"repo"`   // "local" | path | git-url
    Prefix string `json:"prefix"` // issue prefix
}
```

## Agent State (*/state.json)

```go
type AgentState struct {
    Role       string    `json:"role"`       // "mayor", "witness", etc.
    LastActive time.Time `json:"last_active"`
    Session    string    `json:"session,omitempty"`
    Extra      map[string]any `json:"extra,omitempty"`
}
```

## Interface

```go
func LoadTownConfig(path string) (*TownConfig, error)
func SaveTownConfig(path string, config *TownConfig) error

func LoadRigsConfig(path string) (*RigsConfig, error)
func SaveRigsConfig(path string, config *RigsConfig) error

func LoadAgentState(path string) (*AgentState, error)
func SaveAgentState(path string, state *AgentState) error
```

## Validation

- Version compatibility checks
- Required field validation
- Path existence verification


Agent monitoring and status inference

Agent monitoring with status inference from activity, like PGT.

## Agent Status Enum
```go
type AgentStatus string
const (
    StatusAvailable AgentStatus = "available"
    StatusWorking   AgentStatus = "working"
    StatusThinking  AgentStatus = "thinking"
    StatusBlocked   AgentStatus = "blocked"
    StatusWaiting   AgentStatus = "waiting"
    StatusReviewing AgentStatus = "reviewing"
    StatusIdle      AgentStatus = "idle"
    StatusPaused    AgentStatus = "paused"
    StatusError     AgentStatus = "error"
    StatusOffline   AgentStatus = "offline"
)
```

## Status Sources (priority order)
```go
type StatusSource string
const (
    SourceBossOverride StatusSource = "boss"      // Witness/Mayor sets
    SourceSelfReported StatusSource = "self"      // Agent reports own status
    SourceInferred     StatusSource = "inferred"  // Detected from activity
)
```

## Activity Detection

### Pattern Registry
```go
var activityPatterns = []struct {
    Pattern string
    Status  AgentStatus
}{
    {"Thinking...", StatusThinking},
    {"BLOCKED:", StatusBlocked},
    {"Error:", StatusError},
    // etc
}
```

### Idle Detection
No pane output for N seconds → StatusIdle

### Resource Monitoring (optional)
CPU/memory via os.Process

## New Package
internal/monitoring/
├── types.go      # AgentStatus, StatusReport
├── detector.go   # PatternRegistry, detect from output
├── tracker.go    # Per-agent status tracking
└── idle.go       # Idle timeout detection

## Integration
- Session capture output → monitoring detector
- Status shown in gt status, gt session list

## PGT Reference
gastown-py/src/gastown/monitoring/

## Acceptance Criteria
- [ ] Status enum with 10 states
- [ ] Pattern-based detection from pane output
- [ ] Idle detection with configurable timeout
- [ ] Status visible in CLI output


Add Gas Town theory of operation to all role primings

All roles (Mayor, Witness, Refinery, Polecat) should get basic GT architecture context: harness, rigs, agents, mail, beads workflow


gt spawn: pasted work assignment needs manual Enter to start

## Problem

After `gt spawn` pastes the work assignment into Claude, the session waits for Enter.

## Current Behavior

1. `gt spawn gastown/Rictus --issue gt-xxx`
2. Session starts, work is pasted
3. Claude shows 'Pasted text #1 +53 lines' but doesn't start
4. Must manually send Enter or attach and press Enter

## Expected

The spawn should send Enter after pasting to kick off the work.

## Related

Same debounce issue as tmux notifications (gt-vnp9).


Phase 3.1: Summary generation protocol

Define how agents generate summaries for squash.

## The Problem

Beads doesn't make AI calls (inversion of control). Gas Town agents must:
1. Generate their own summary before calling squash
2. Pass summary to bd squash command

## Summary Template

```
Task: <source issue title>
Action: <what was done - fix/implement/refactor/etc>
Outcome: <result - tests pass, committed, needs follow-up, etc>
Details: <1-2 sentences of specifics if needed>
```

## Example

```
Task: Fix lifecycle parser matching bug (gt-rixa)
Action: Reordered conditional checks in parseLifecycleRequest
Outcome: Tests passing, committed to polecat/furiosa
Details: The 'cycle' keyword was matching 'lifecycle:' prefix. Now checks restart/shutdown first, uses word boundary for cycle.
```

## Command

```bash
bd squash eph-abc123 --summary "Task: Fix lifecycle parser..."
```


Molecule schema: YAML format for workflow definitions

Define the YAML schema for molecule definitions:

```yaml
molecule: <name>
version: 1
description: "Human description"
steps:
  - id: <step-id>
    title: "Step title"
    prompt: "Instructions for agent"
    depends: [<other-step-ids>]  # optional
    tier: haiku|sonnet|opus      # optional, default from config
    timeout: 30m                 # optional
```

Store molecules in:
- `<rig>/molecules/<name>.yaml` for rig-specific
- `<town>/molecules/<name>.yaml` for town-wide

Built-in molecules to ship:
- engineer-in-box: design→code→review→test→submit
- quick-fix: implement→test→submit
- research: investigate→document


gt mq retry: retry a failed MR

Implement 'gt mq retry <id>' to retry a failed merge request.

Actions:
1. Verify MR exists and is in failed state (open with failure labels)
2. Remove failure labels (needs-rebase, needs-fix)
3. Reset to ready state
4. Optionally re-run immediately (--now flag)

Options:
- --now: immediately process (instead of waiting for Engineer loop)

Reference: docs/merge-queue-design.md#cli-commands


Merge: gt-rana.1

branch: polecat/rictus
target: main
source_issue: gt-rana.1
rig: gastown


HTTP work server: gt worker serve command

## Overview

HTTP server that runs inside Cloud Run containers, accepting work requests.

## Command

```bash
gt worker serve --port 8080
```

## Implementation

```go
type WorkServer struct {
    port    int
    handler *WorkHandler
}

func (s *WorkServer) ServeHTTP(w http.ResponseWriter, r *http.Request) {
    switch r.URL.Path {
    case "/work":
        s.handleWork(w, r)
    case "/health":
        s.handleHealth(w, r)
    default:
        http.NotFound(w, r)
    }
}

func (s *WorkServer) handleWork(w http.ResponseWriter, r *http.Request) {
    // 1. Parse WorkRequest
    // 2. Clone/pull repo
    // 3. Start Claude on issue
    // 4. Stream WorkEvents as NDJSON
    // 5. Return WorkResult
}
```

## Streaming Response

```go
func (s *WorkServer) streamEvents(w http.ResponseWriter, events <-chan WorkEvent) {
    flusher, _ := w.(http.Flusher)
    encoder := json.NewEncoder(w)
    for event := range events {
        encoder.Encode(event)
        flusher.Flush()
    }
}
```

## Files

- `internal/cloudrun/server.go`
- `cmd/gt/worker_serve.go` - Cobra command

## Dependencies

Depends on: gt-9a2.7 (protocol types)


Phase 1.1: Attachment field on pinned beads

Add attached_molecule field to pinned bead schema.

## Schema Change
Add to handoff/pinned bead issues:
- attached_molecule: string (root issue ID of attached mol)
- attached_at: timestamp

## Implementation
- Update beads Issue struct if needed
- Or: use labels/metadata field
- Ensure bd show displays attachment info

## Acceptance
- Can set/clear attachment on a bead
- bd show displays attachment status


request-shutdown

Send shutdown request to Witness.
Wait for termination.

The polecat is now ready to be cleaned up.
Do not exit directly - wait for Witness to kill the session.

Depends: generate-summary


Molecule CLI: bd molecule commands

Add molecule commands to bd:

## Commands

```bash
bd molecule list              # List molecules (type: molecule)
bd molecule show <id>         # Show molecule with parsed steps
bd molecule parse <id>        # Validate and show parsed structure
bd molecule instantiate <mol-id> --parent=<issue-id>  # Create steps
bd molecule instances <mol-id>  # Show all instantiations
```

## gt spawn integration

```bash
gt spawn --issue <id> --molecule <mol-id>
```

This should:
1. Call `bd molecule instantiate` (creates child beads atomically)
2. Spawn polecat on first ready step
3. Polecat grinds through via `bd ready`

## Output Examples

```
$ bd molecule show mol-abc

mol-abc: Engineer in a Box
Type: molecule

Steps (5):
  design      → (ready first)
  implement   → Needs: design
  review      → Needs: implement
  test        → Needs: implement
  submit      → Needs: review, test

Instances: 3
```

```
$ bd molecule instances mol-abc

Parent          Status    Created
gt-xyz          done      2025-12-15
gt-abc          active    2025-12-17 (3/5 complete)
gt-def          pending   2025-12-18
```


Interrupt vs Queue mail semantics

Add priority/delivery semantics to mail messages.

## Semantics

| Type | Delivery | Use Case |
|------|----------|----------|
| Interrupt | tmux send-keys | Lifecycle, URGENT, stuck detection |
| Queue | Create message only | Normal mail, status, heartbeat |

## Implementation

- `bd mail send --interrupt` uses tmux send-keys notification
- Default is queue (agent checks with `gt mail check`)
- Urgent flag on messages for interrupt delivery

## Agent Side

- `gt mail check --quiet` - non-blocking check for queued mail
- `gt mail wait` - block until mail arrives (for idle agents)
- Heartbeats become queued, agent checks at natural breakpoints


Integration branch management for swarms

Manage integration branches for swarm merging strategy.

## Branch Naming

- Integration branch: `integration/<swarm-id>` (e.g., integration/sw-1)
- Worker branches: `<swarm-id>/<polecat>` (e.g., sw-1/Toast)

## Operations

```go
// Create integration branch at swarm start
func (m *SwarmManager) CreateIntegrationBranch(swarmID string) error
// - Creates from BaseCommit
// - Pushes to origin

// Merge worker branch to integration
func (r *Refinery) MergeToIntegration(swarmID, workerBranch string) error
// - Fetches worker branch
// - Merges to integration/<swarm-id>
// - Handles conflicts (semantic merge)

// Land integration to main
func (r *Refinery) LandToMain(swarmID string) error
// - Merges integration/<swarm-id> to main
// - Pushes to origin
// - Triggers cleanup

// Cleanup branches after landing
func (m *SwarmManager) CleanupBranches(swarmID string) error
// - Deletes integration/<swarm-id> (local + remote)
// - Deletes all <swarm-id>/<polecat> branches
```

## All Workers Same Base

When swarm starts:
1. Record current main HEAD as BaseCommit
2. All polecats branch from BaseCommit
3. Integration branch also starts at BaseCommit

This ensures clean merges within the swarm.

## Reference

PGT: ephemeral.py (create_integration_branch, merge_integration_to_main)


Merge: gt-3x1

branch: polecat/Slit
target: main
source_issue: gt-3x1
rig: gastown


self-review

Review your own changes. Look for:
- Bugs and edge cases
- Style issues
- Missing error handling
- Security concerns

Fix any issues found before proceeding.

Depends: implement


Outpost error handling: Retry logic and resilience

## Overview

Error handling and retry logic for outpost operations.

## Error Types

```go
var (
    ErrOutpostUnreachable = errors.New("outpost unreachable")
    ErrWorkerSpawnFailed  = errors.New("worker spawn failed")
    ErrWorkerTimeout      = errors.New("worker timed out")
    ErrCostCapExceeded    = errors.New("cost cap exceeded")
    ErrAllOutpostsBusy    = errors.New("all outposts at capacity")
)
```

## Retry Policy

```go
type RetryPolicy struct {
    MaxAttempts     int
    InitialBackoff  time.Duration
    MaxBackoff      time.Duration
    BackoffFactor   float64
    RetryableErrors []error
}

func DefaultRetryPolicy() *RetryPolicy {
    return &RetryPolicy{
        MaxAttempts:    3,
        InitialBackoff: 1 * time.Second,
        MaxBackoff:     30 * time.Second,
        BackoffFactor:  2.0,
        RetryableErrors: []error{
            ErrOutpostUnreachable,
            ErrWorkerSpawnFailed,
        },
    }
}
```

## Retry Implementation

```go
func (m *OutpostManager) SpawnWithRetry(issue string, cfg WorkerConfig) (Worker, error) {
    var lastErr error
    backoff := m.retryPolicy.InitialBackoff

    for attempt := 0; attempt < m.retryPolicy.MaxAttempts; attempt++ {
        outpost := m.policy.SelectOutpost(issue, m.outposts)
        if outpost == nil {
            return nil, ErrAllOutpostsBusy
        }

        worker, err := outpost.Spawn(issue, cfg)
        if err == nil {
            return worker, nil
        }

        if !m.isRetryable(err) {
            return nil, err
        }

        lastErr = err
        time.Sleep(backoff)
        backoff = min(backoff * m.retryPolicy.BackoffFactor, m.retryPolicy.MaxBackoff)
    }

    return nil, fmt.Errorf("spawn failed after %d attempts: %w",
        m.retryPolicy.MaxAttempts, lastErr)
}
```

## Outpost Health Tracking

```go
type OutpostHealth struct {
    LastPing      time.Time
    LastError     error
    FailureCount  int
    CircuitBreaker bool  // If true, skip this outpost
}

func (m *OutpostManager) updateHealth(name string, err error) {
    // Track failures, open circuit breaker after N failures
    // Auto-reset after successful ping
}
```

## Config

```yaml
policy:
  retry:
    max_attempts: 3
    initial_backoff: 1s
    max_backoff: 30s

  circuit_breaker:
    failure_threshold: 5
    reset_timeout: 1m
```

## Files

- `internal/outpost/retry.go`
- `internal/outpost/health.go`

## Dependencies

Depends on: gt-9a2.3 (OutpostManager)
Can be done after basic outpost implementations work.


Polecat prompting: gt mq submit on completion

Update Polecat CLAUDE.md prompting to:

1. On task completion, run: gt mq submit --issue <id>
2. This creates a merge-request bead in the queue
3. Engineer will process it

The Polecat self-reports completion to the merge queue.


Patrols: Cyclic molecules for autonomous maintenance

## Vision

Patrols are **cyclic molecules** - workflow loops that give Gas Town its autonomous nervous system. While regular molecules are DAGs that terminate, patrols loop forever, performing maintenance tasks at varying cadences.

This is the "steam engine" of Gas Town: converting episodic Claude sessions into continuous autonomous operation.

## Core Concepts

### 1. Cyclic Molecules

Regular molecule:     A -> B -> C -> done
Patrol molecule:      A -> B -> C --+
                      ^             |
                      +-------------+

Patrols have a loop_to field specifying where to restart.

### 2. Cooldown-Aware Steps (Atoms)

Steps encode their own cadence. When patrol reaches a step:
1. Check: now - last_run > cooldown?
2. If yes: execute, update last_run
3. If no: skip (immediately close)

The patrol runner is simple - steps self-skip. Complexity distributed into atoms.

### 3. The Beacon

The heartbeat that fires patrol triggers:
- Internal ticker in Deacon (goroutine)
- Or external cron firing gt deacon tick
- Or mail-based triggers

Without beacon, nothing proactive happens.

### 4. Session Reset as Patrol Step

Connects to auto-handoff (gt-bcwn). Session reset is a patrol step, not a separate mechanism.

### 5. Multi-Role Patrols

Each supervisor has its own patrol:

**Deacon patrol:** health-check (30s), session-gc (5m), beacon-tick (10s)
**Witness patrol:** orphan-scan (10m), stuck-check (2m), molecule-progress (1m)
**Refinery patrol:** queue-check (30s), pr-status (1m), merge-ready (30s)

### 6. Cadence Tiers

- Critical (10-30s): Health checks
- Active (1-5m): Progress, nudges
- Maintenance (10-30m): Orphans, GC
- Periodic (1h+): Reports

### 7. Best-Effort Scheduling

Not real-time - more like cron. No hard deadlines. Catch-up, dont pile-up.
Priority preemption (mail interrupts patrol). Graceful degradation under load.

## Open Questions

1. State persistence: Beads (self-describing) or file (faster)?
2. Interruption: How does urgent mail preempt patrol?
3. Error recovery: Backoff? Escalate? Circuit breaker?
4. Coordination: Can patrols send mail to trigger other patrols?

## Related

- gt-bcwn: Auto-handoff (session reset is a patrol step)
- Molecule system (patrols extend molecules with loops)
- Deacon lifecycle management

## Metaphor

Claude was fire. Claude Code was steam. Gas Town is the steam engine. Beads is the train tracks.

The steam engine converts episodic combustion into continuous rotary motion.
Gas Town converts episodic Claude sessions into continuous autonomous work.


Work assignment mail not received by polecat

When gt spawn sends a work assignment:

1. gt spawn says '✓ Work assignment sent'
2. Polecat runs 'gt mail inbox'
3. Shows '0 messages, 0 unread'

The work assignment mail never arrived at the polecat's inbox.

## Observed in session
- Spawned polecat dementus on gt-th7
- Polecat checked inbox: empty
- Polecat couldn't find issue (separate sync bug)

## Possible causes
- Mail routing issue for polecat addresses
- gt spawn not actually sending mail
- Mail sent to wrong address format

This was likely caused by stale beads in old polecats. With gt-9nf (fresh polecats), polecats now use shared rig beads via redirect file, eliminating sync issues. Mail routing uses town beads correctly.


Resource Beads: Leases, locks, and quotas

Resource beads represent reserved resources. Types: vm, lock, slot, quota. Fields: holder, expires, renewable. Daemon monitors for expiry and manages contention.


MQ dashboard widget: queue status in TUI

Add merge queue status widget to the Bubbletea TUI dashboard.

Display:
┌─────────────────────────────────────────────────┐
│              MERGE QUEUE STATUS                  │
├─────────────────────────────────────────────────┤
│ Pending: 3   In Progress: 1   Merged (24h): 12  │
├─────────────────────────────────────────────────┤
│ QUEUE:                                          │
│   ► gt-mr-004  P0  Nux/gt-xyz     Processing... │
│     gt-mr-005  P1  Toast/gt-abc   Ready         │
│     gt-mr-006  P1  Capable/gt-def Blocked (005) │
└─────────────────────────────────────────────────┘

Interactive features:
- Navigate queue entries
- View MR details
- Retry/reject from dashboard

Depends on: gt-u1j.2 (Bubbletea TUI dashboard)

Reference: docs/merge-queue-design.md#dashboard


Add molecule phase lifecycle diagram to architecture.md

Create a clear lifecycle diagram showing molecule phases:

```
                    ┌─────────────┐
                    │   Proto     │
                    │  (crystal)  │
                    └──────┬──────┘
                           │
                      bd mol bond
                           │
              ┌────────────┴────────────┐
              │                         │
              ▼                         ▼
      ┌───────────────┐        ┌───────────────┐
      │     Mol       │        │    Wisp       │
      │   (liquid)    │        │    (gas)      │
      │   durable     │        │  ephemeral    │
      │  main beads   │        │ .beads-eph/   │
      └───────┬───────┘        └───────┬───────┘
              │                        │
         bd mol squash            bd mol squash
              │                        │
              ▼                        ▼
      ┌───────────────┐        ┌───────────────┐
      │    Digest     │        │   (nothing)   │
      │ (distillate)  │        │  evaporates   │
      │  in git hist  │        └───────────────┘
      └───────────────┘
```

Also document:
- When to use Mol vs Wisp
- Mol: code review waves, epic implementation, feature work
- Wisp: orchestration, polecat work sessions, patrol loops


gt crew add: Create crew workspace

Implement 'gt crew add <name> [--rig <rig>]' command:
- Clone repo into <rig>/crew/<name>/
- Create feature branch (optional, or stay on main)
- Register for mail delivery
- Initialize CLAUDE.md with crew worker prompting
- Do NOT register with witness (user-managed)


Crew workers getting wrong CLAUDE.md (shows Refinery)

## Problem

Crew workers (emma, dave) have CLAUDE.md that says they're the Refinery.

## Evidence

```
$ head -5 /Users/stevey/gt/beads/crew/emma/CLAUDE.md
# Claude: Beads Refinery
You are the **Refinery** for the **beads** rig...
```

## Expected

Should use crew.md.tmpl which correctly says:
```
# Crew Worker Context
You are a **crew worker** - the overseer's (human's) personal workspace...
```

## Impact

- Crew workers have wrong identity in static context
- `gt prime` correctly outputs crew context, but CLAUDE.md conflicts
- Confusing role information

## Fix

Check `gt crew create` or whatever populates CLAUDE.md for crew workers.


Update harness beads redirect for GGT

Change ~/ai/.beads/redirect from mayor/rigs/gastown/.beads to gastown/mayor/.beads for the GGT directory structure


Witness session cycling and handoff

Add session cycling and handoff protocol to Witness CLAUDE.md template.

## Session Cycling Protocol

```markdown
## Session Cycling

Your context will fill over long swarms. Proactively cycle when:
- Running for many hours
- Losing track of which workers you've checked
- Responses getting slower
- About to start complex operation

### Handoff Protocol

1. **Capture current state**:
```bash
town list .           # Worker states
town all beads        # Pending verifications
town inbox            # Unprocessed messages
```

2. **Compose handoff note**:
```
[HANDOFF_TYPE]: witness_cycle
[TIMESTAMP]: <now>
[RIG]: <rig>

## Active Workers
<list workers and status>

## Pending Verifications
<workers signaled done but not verified>

## Recent Actions
<last 3-5 actions>

## Warnings/Notes
<anything next session should know>

## Next Steps
<what should happen next>
```

3. **Send handoff**:
```bash
town mail send <rig>/witness -s "Session Handoff" -m "<note>"
```

4. **Exit cleanly**: End session, daemon spawns fresh one.

### On Fresh Session Start

1. Check for handoff: `town inbox | grep "Session Handoff"`
2. If found, read it and resume from handoff state
3. If not found, do full status check
```

## Implementation

Add to WITNESS_CLAUDE.md template.


Preflight molecule: verify baseline health before work

Before assigning work, verify baseline (main branch) is healthy.

**From VC**: Self-healing state machine (HEALTHY → SELF_HEALING → ESCALATED). ~200 lines.

**Gas Town implementation**: Preflight molecule or refinery feature:
```yaml
preflight:
  gates: [test, lint, build]
  on_failure: create-fix-issue
```

Run at session start. If baseline broken, file a P0 fix issue and work on that first.

**Value**: Self-healing baseline. Agents don't start from broken state.

**VC lesson**: Prevents cascading failures. Agent shouldn't start work on broken code.


Merge: gt-y5o

branch: polecat/Doof
target: main
source_issue: gt-y5o
rig: gastown


Implement gt harness create command

Add scaffolding command to create a new harness:
- gt harness create [path]
- Creates config/, mayor/, .beads/redirect (optional)
- Optionally initializes git
- Generates CLAUDE.md with Mayor role
- Could also offer a template repo alternative


Implement gt mq CLI commands

Add gt mq subcommands as sugar over bd:

- gt mq submit: Create MR for current branch
- gt mq list: Show open merge requests
- gt mq next: Show next MR ready to process
- gt mq process: Engineer processes the queue
- gt mq reorder <id> --after <x>: Change ordering via deps
- gt mq status <id>: Show MR details

All commands should work with the Beads data plane.


Haiku-based smart stuck detection

Use Haiku to analyze tmux state when signals are ambiguous.

## When to Invoke

Only as escalation tier:
1. Keepalive is stale (> 2 min)
2. Tmux shows claude is running (not idle shell)
3. Heuristics can't determine state

## Prompt

Capture last 50 lines of tmux pane, ask Haiku:
'Is this Claude agent: WORKING | STUCK | IDLE | WAITING_FOR_HUMAN?'

## Cost

~$0.001 per check. At 1 check/min worst case = $0.06/hour.
In practice, most checks avoided by keepalive signal.

## Configuration

```toml
[daemon]
smart_detection = true
smart_model = "haiku"
smart_threshold = "2m"  # only check if stale > 2min
```


Molecule converge: iterate until AI says done

Work isn't 'done' until AI is confident it's done. Fixes the 85% problem.

**From VC**: internal/iterative/converge.go - 3-7 iterations with AI convergence detection. ~600 lines.
Target: 20%+ more issues discovered. Observed: ~25% average improvement.

**Gas Town implementation**: Molecule converge config:
```yaml
converge:
  strategy: ai
  min_iterations: 3
  max_iterations: 7
  confidence: 0.85
```

Polecat iterates, AI checks convergence. Stop when AI is confident or max reached.

**Value**: Raw agents get to ~85% and stop. Iteration catches the remaining 15%.

**VC metrics**: Convergence rate >70%, mean 4-5 iterations for complex work.


Daemon: proper rig discovery

Currently discovers rigs by scanning tmux session names for gt-*-witness pattern. Should instead:
- Read rigs from mayor/rigs.json
- Or scan town directory for .gastown subdirs
- Handle rigs that exist but don't have running witnesses


Merge polecat/slit: docs bd mol bond/squash/burn CLI

Branch: polecat/slit

## Summary
Added comprehensive CLI reference documentation for the three molecule lifecycle commands to molecules.md:

- **bd mol bond**: Instantiate proto into Mol (durable) or Wisp (ephemeral)
- **bd mol squash**: Complete molecule and generate digest
- **bd mol burn**: Abandon molecule without digest

Includes argument tables, behavior descriptions, examples, and a lifecycle diagram showing the steam engine metaphor mapping.

Closes: gt-odvf


CLI: gt refinery commands (start, stop, status, queue)

CLI commands for managing the Refinery agent.

## Commands

```bash
gt refinery start <rig>      # Start refinery for a rig
gt refinery stop <rig>       # Stop refinery
gt refinery status <rig>     # Show refinery status
gt refinery queue <rig>      # Show merge queue
```

## gt refinery start

Starts the Refinery daemon for the specified rig.

Options:
- --foreground: Run in foreground (default: background)
- --auto-merge: Enable auto-merge (default: from config)

## gt refinery stop

Stops a running Refinery. Gracefully finishes current MR if processing.

## gt refinery status

Shows:
- Running state (running/stopped)
- Current MR being processed (if any)
- Queue length
- Last merge time
- Recent activity

## gt refinery queue

Shows the merge queue:
```
Merge queue for 'wyvern':
  1. [pending] Toast/polecat-auth-fix (15m ago)
  2. [pending] Capable/polecat-new-feature (5m ago)

1 merged today, 0 rejected
```

## Implementation

Uses gt-ov2 (Refinery agent) for daemon functionality.


Implement pinned beads for handoff state

Add pinned bead support to beads:
- Pinned beads never close, only update
- Use for persistent state like Refinery handoffs
- bd create --pinned flag
- bd list --pinned to find them
- Update description to change state


Work reconciliation module

Port reconcile.py work verification to Go.

## Purpose

Verify assigned issues are completed before landing.

## Interface

```go
type ReconcileResult struct {
    CompletedIssues  []IssueInfo
    IncompleteIssues []IssueInfo
    AllComplete      bool
    PolecatsChecked  []string
    Errors           []string
}

func ReconcileWork(rig string, polecats []string) *ReconcileResult
func GetAssignedIssues(assignee string) []IssueInfo
func UnassignIssue(issueID string, resetStatus bool) error
```

## Logic

1. Get list of polecats in swarm
2. For each polecat, query beads for assigned issues
3. Categorize as completed (closed) or incomplete (open/in_progress)
4. Return summary for landing decision

## Handling Incomplete Work

If issues incomplete:
- Abort landing (default)
- Or force landing (leaves work unfinished)
- Unassign incomplete issues for future work

## Reference

PGT: swarm/reconcile.py


gt witness: Witness management commands

Add 'gt witness' command group for witness lifecycle management.

Subcommands:
- gt witness start [rig] - Start witness for a rig
- gt witness stop [rig] - Stop witness
- gt witness status [rig] - Show witness status
- gt witness attach [rig] - Attach to witness session

Witness monitors polecats and handles:
- Idle detection and cleanup
- Session health checks
- Nudging stuck agents


gt mq reject: manual MR rejection

Implement 'gt mq reject <id> --reason "..."' for manual rejection.

Actions:
1. Verify MR exists and is open
2. Close MR with close_reason=rejected
3. Notify worker via mail (optional)
4. Do NOT close source issue (work not done)

Options:
- --reason REASON: required explanation
- --notify: send mail to worker

Reference: docs/merge-queue-design.md#cli-commands


Document merge queue architecture

Update docs/architecture.md with:

- Merge Queue section explaining Beads-native approach
- Engineer role (renamed from Refinery)
- Session restart protocol
- gt mq command reference
- Federation considerations for queue

Also update any references to .gastown/ → config/.


self-review

Review your own changes. Look for:
- Bugs and edge cases
- Style issues
- Missing error handling
- Security concerns

Fix any issues found before proceeding.

Depends: implement


gt doctor: Detect and clean up orphaned sessions/processes

## Problem
Orphaned tmux sessions and Claude processes accumulate over time, consuming memory.

## Discovered Orphans
- gt-deacon: Idle Claude session, not part of any rig

## Proposed Solution

### gt doctor --check (default)
Detect issues without fixing:
- Orphan sessions (not matching rig/polecat/crew/witness/refinery/mayor pattern)
- Claude processes without parent tmux session
- Tmux sessions without Claude (stuck at bash prompt)
- Polecats marked 'working' but session idle

### gt doctor --fix
Clean up detected issues:
- Kill orphan sessions
- Kill orphan Claude processes
- Optionally reset stuck polecat state

### gt gc (alternative name)
Short alias for cleanup operations.

## Acceptance Criteria
- [ ] Detects orphan sessions
- [ ] Detects orphan processes
- [ ] Safe cleanup (doesn't kill active work)
- [ ] Reports what was cleaned


gt mq status: detailed MR view

Implement 'gt mq status <id>' command for detailed MR view.

Display:
- All MR fields (branch, target, source_issue, worker, rig)
- Current status with timestamps
- Dependencies (what it's waiting on)
- Blockers (what's waiting on it)
- Processing history (attempts, failures)

Under the hood: bd show <id> with MR-specific formatting.

Reference: docs/merge-queue-design.md#command-details


Worker cleanup: Beads sync on shutdown

Add beads sync verification to worker cleanup checklist and Witness verification.

## Update to Decommission Checklist (gt-sd6)

Add to pre-done verification:
- bd sync --status must show 'Up to date'
- git status .beads/ must show no changes

## Beads Edge Cases

Uncommitted beads changes:
  bd sync
  git add .beads/
  git commit -m 'beads: final sync'

Beads sync conflict (rare):
  git fetch origin main
  git checkout main -- .beads/
  bd sync --force
  git add .beads/
  git commit -m 'beads: resolve sync conflict'

## Update to Witness Verification (gt-f8v)

When capturing worker state:
  town capture <polecat> "bd sync --status && git status .beads/"

Check for:
- bd sync --status shows 'Up to date'
- git status .beads/ shows no changes

If beads not synced, nudge:
  WITNESS CHECK: Beads not synced. Run 'bd sync' then commit .beads/. Signal done when complete.


Create mol-gastown-polecat derived molecule

Create the standard Gas Town polecat workflow molecule.

## Molecule Definition
\`\`\`markdown
## Molecule: gastown-polecat
Full workflow for Gas Town polecats including binary installation.

Includes: mol-engineer-in-box

## Step: install-binary
After merge is submitted, rebuild and install the local gt binary.
This ensures the latest code is available to all local agents.

Run from the rig directory:
\`\`\`
go build -o gt ./cmd/gt
go install ./cmd/gt
\`\`\`

Needs: submit
\`\`\`

## Why This Molecule
Every polecat that pushes to main should also rebuild the binary.
This ensures the installed gt is always current with main.

## Implementation
1. Add to builtin_molecules.go (after Includes support lands)
2. Update SeedBuiltinMolecules
3. Run gt molecule seed

## Acceptance
- [ ] mol-gastown-polecat exists
- [ ] Includes all engineer-in-box steps
- [ ] Adds install-binary step after submit
- [ ] Can be used with gt spawn --molecule


Town-level beads: Real DB for coordination mail

Implement Option A from mail redesign: Town gets real beads DB for coordination.

## Background

Mail is now Beads. But currently:
- Town .beads/redirect points to rig beads
- mayor/mail/ has legacy JSONL files
- Cross-rig coordination has no clear home

## Design

Town beads = coordination, cross-rig mail, mayor inbox, handoffs
Rig beads = project issues, work items

Matches HOP hierarchy: platform > project > worker

## Structure

~/gt/
  .beads/           # REAL beads DB (prefix: gm-)
  mayor/
    town.json
    state.json      # NO mail/ directory
  gastown/
    .beads/         # Rig beads (prefix: ga-)

## Tasks

1. Delete ~/gt/.beads/redirect
2. Run bd init --prefix gm at ~/gt/ (town beads)
3. Delete ~/gt/mayor/mail/ directory
4. Update gt mail to use beads not JSONL
5. Add mail fields (thread_id, reply_to, msg_type)
6. Update gt prime for two-tier model
7. Update docs/architecture.md

## Addressing

- mayor/ -> town beads
- rig/agent -> rig beads
- Cross-rig -> town beads


Test: release command verification


Split PGT/GGT harness or migrate to GGT-only

Current ~/ai harness is shared by PGT and GGT with confusing overlap. Options:
1. Keep separate (document the coexistence)
2. Migrate fully to GGT structure
3. Create separate harnesses

This affects the beads redirect, Mayor home location, and rig structure.


request-shutdown

Send shutdown request to Witness.
Wait for termination.

The polecat is now ready to be cleaned up.
Do not exit directly - wait for Witness to kill the session.

Depends: generate-summary


plugin-run

Execute plugins from ~/gt/plugins/. Check gates, run eligible plugins.


mol-outpost-assign: Intelligent work routing to outposts

The federation design shows outposts.yaml with a static policy section. Simple preference ordering is fine as config, but intelligent work routing should be a molecule.

Current static approach:
```yaml
policy:
  default_preference: [local, gce-burst, cloudrun-burst]
```

Cases requiring cognition:
- "This is a long-running research task, route to VM not CloudRun"
- "This touches sensitive code, keep local"
- "These 5 issues are related, batch them to same outpost"
- "CloudRun cost is high today, prefer local even if slower"

## Molecule: outpost-assign
Intelligent work-to-outpost routing.

## Step: classify-work
Analyze the issue/work item:
- Expected duration (quick fix vs multi-hour)
- Resource requirements
- Sensitivity/security tier
- Related work (same epic?)

## Step: check-capacity
Query outpost status:
- Current load on each
- Cost accrued today
- Health status

## Step: select-outpost
Choose optimal outpost based on:
- Work classification
- Capacity/cost
- Policy constraints
Needs: classify-work, check-capacity

## Step: emit-assignment
Record decision in beads for audit.
Needs: select-outpost

## Notes
- This molecule is invoked by Mayor/Witness when spawning
- Simple cases can short-circuit to static policy
- Full analysis only for ambiguous cases


Plugin system: subprocess JSON protocol

Language-agnostic plugin system via subprocess JSON protocol.

## Concept

Allow extending Gas Town with external scripts/programs. Plugins communicate via stdin/stdout JSON.

## Protocol

Request (gt → plugin):
```json
{"method": "check", "params": {"rig": "wyvern", "polecat": "Toast"}}
```

Response (plugin → gt):
```json
{"result": {...}, "error": null}
```

Error response:
```json
{"result": null, "error": {"code": 1, "message": "..."}}
```

## Interface

```go
type Plugin struct {
    Name    string
    Path    string  // executable path
    Methods []string
}

type PluginManager struct {
    plugins map[string]*Plugin
}

func NewPluginManager() *PluginManager
func (pm *PluginManager) Register(plugin *Plugin) error
func (pm *PluginManager) Call(plugin, method string, params any) (any, error)
func (pm *PluginManager) Discover(dir string) error  // auto-discover plugins
```

## Plugin Discovery

Look in:
1. `<town>/plugins/`
2. `~/.config/gastown/plugins/`
3. System path with `gt-plugin-*` prefix

## Built-in Hooks

Plugins can register for events:
- `polecat.started` - Polecat session started
- `polecat.done` - Polecat signals done
- `merge.requested` - MR submitted
- `merge.completed` - MR merged

## Use Cases

- Custom health checks
- Integration with external systems (Slack, etc.)
- Custom merge policies
- Metrics collection

## Future

Consider MCP integration for richer plugin capabilities.


Engineer main loop: poll for ready merge-requests

Implement the Engineer's main processing loop.

Loop structure:
1. Query: bd ready --type=merge-request
2. If empty: sleep(poll_interval), continue
3. Select highest priority, oldest MR
4. Claim: bd update <id> --status=in_progress
5. Process (delegate to other subtasks)
6. Repeat

Configuration:
- poll_interval: from rig config (default 30s)
- max_concurrent: from rig config (default 1)

The loop should be interruptible and handle graceful shutdown.

Reference: docs/merge-queue-design.md#engineer-processing-loop


HOP: Entity chain tracking for agents

Track work history per-entity (CV chains). See ~/ai/stevey-gastown/hop/decisions/002-entity-chains.md for design. Post-v0.1 work.


LocalOutpost: Refactor current polecat spawning

## Overview

Refactor current local polecat spawning to implement the Outpost interface.

## Current State

Polecat spawning is ad-hoc. This task wraps it in LocalOutpost.

## Implementation

```go
type LocalOutpost struct {
    name       string
    maxWorkers int
    tmux       *Tmux
    workers    map[string]*LocalWorker
}

func NewLocalOutpost(config OutpostConfig) *LocalOutpost

func (o *LocalOutpost) Type() OutpostType { return OutpostLocal }

func (o *LocalOutpost) Spawn(issue string, cfg WorkerConfig) (Worker, error) {
    // Create tmux session
    // Start claude in pane
    // Return LocalWorker
}
```

## LocalWorker

```go
type LocalWorker struct {
    id      string
    session string  // tmux session name
    issue   string
    status  WorkerStatus
}

func (w *LocalWorker) Attach() error {
    // tmux attach-session
}
```

## Notes

- This should be a refactor, not new functionality
- Existing polecat code becomes LocalOutpost internals
- Tests should pass before and after

Depends on: gt-9a2.1 (interfaces)


orphan-check

Find abandoned work. Check for in_progress issues with no active agent.


Auto-target: MRs for epic children target integration branch

Automatically target integration branches for epic children.

When 'gt mq submit' is called:
1. Parse source issue from branch
2. Check if issue has a parent epic
3. Check if integration/<epic> branch exists
4. If yes: set target=integration/<epic>
5. If no: set target=main

This ensures batch work automatically flows to integration branches.

Also update 'gt mq submit --epic' to explicitly target an epic's integration branch.

Reference: docs/merge-queue-design.md#integration-branches


self-review


Refinery background daemon mode

The refinery 'gt refinery start' command only works in foreground mode (--foreground). Need to implement background daemon mode for production use.

Options:
1. Use a separate tmux session for the refinery
2. Implement proper daemonization
3. Use Claude Code session for the refinery agent

For MVP, option 1 (tmux session) is probably simplest.


Add human escalation configuration

Add overseer contact config to mayor/town.json. Deacon uses this for escalation when it cannot resolve issues. Support email and/or other notification methods.


Refactor: Eliminate state.json, use beads assignee field for polecat state

## Problem

state.json in each polecat worktree duplicates data that should be in beads:
- `issue` field duplicates assignment (should be issue.assignee)
- `state` field duplicates status (derivable from issue.status)
- `name/rig/branch/clone_path` are all derivable from filesystem/git

This violates 'Beads as the data plane' (HOP Decision 001).

## Current State

```json
{
  "name": "Angharad",        // Derivable: basename(cwd)
  "rig": "gastown",          // Derivable: parent dir name
  "state": "working",        // Should be: issue.status
  "clone_path": "/path",     // Derivable: cwd
  "branch": "polecat/X",     // Derivable: git branch
  "issue": "gt-xyz",         // Should be: issue.assignee
  "timestamps": "..."        // Should be in beads history
}
```

## Target State

**Polecat identity**: Derived from worktree path
**Polecat assignment**: `issue.assignee = 'gastown/Angharad'`
**Polecat state**: Derived from issue.status (in_progress = working, closed = done)
**Polecat existence**: Worktree directory exists

## Benefits

1. Single source of truth (no sync issues)
2. Queryable: `bd list --assignee=gastown/Angharad`
3. History tracking via beads
4. Cross-agent coordination via beads sync
5. Simpler code (no state file management)

## Implementation

1. Update `gt spawn` to set issue.assignee instead of writing state.json
2. Update polecat list/status commands to query beads
3. Update Witness to query beads for polecat state
4. Remove state.json read/write code
5. Keep state.json as optional bootstrap cache (perf optimization only)


Worker prompting: Beads write access

Add beads write access section to polecat AGENTS.md.template.

## Beads Access Section for Prompting

```markdown
## Beads Access

You have **full beads access** - create, update, and close issues.

### Quick Reference

```bash
# View work
bd ready                    # Issues ready (no blockers)
bd list                     # All open issues
bd show <id>                # Issue details

# Create issues
bd create --title="Fix bug" --type=bug --priority=2
bd create --title="Add feature" --type=feature

# Update issues
bd update <id> --status=in_progress    # Claim work
bd close <id>                          # Mark complete

# Sync (required before merge!)
bd sync                     # Commit beads changes to git
```

### When to Create Issues

Create beads issues when you discover work that:
- Is outside your current task scope
- Would benefit from tracking
- Should be done by someone else

**Good examples**:
```bash
bd create --title="Race condition in auth" --type=bug --priority=1
bd create --title="Document API rate limits" --type=task --priority=3
```

**Don't create for**:
- Tiny fixes you can do in 2 minutes
- Vague "improvements" with no scope
- Work already tracked elsewhere

### Beads Sync Protocol

**CRITICAL**: Always sync beads before merging!

```bash
bd sync                    # Commits beads changes
git add .beads/
git commit -m "beads: sync"
```

If you forget to sync, beads changes are lost when session ends.
```

## Implementation

Add to AGENTS.md.template polecat section.


Daemon: integration test with real lifecycle

Need an end-to-end test that:
1. Starts daemon
2. Starts a test agent session
3. Sends lifecycle request to daemon
4. Verifies session was killed and restarted
5. Cleans up

Could use a mock 'agent' that's just a shell script.


Polecats should auto-cleanup after MR submission

Currently polecats must manually run 'gt handoff --shutdown' after completing work. This is error-prone and leaves stale polecats around.

## Desired Flow

1. Polecat completes work
2. Polecat runs 'gt mq submit' (or similar)
3. MR is added to integration queue
4. **Polecat automatically cleans up** (no manual handoff needed)

## Implementation Options

### Option A: mq submit triggers cleanup
In 'gt mq submit':
1. Submit MR to queue
2. Automatically run cleanup (same as gt handoff --shutdown)
3. Polecat session terminates

### Option B: Refinery triggers cleanup
When Refinery picks up MR:
1. Refinery processes MR
2. Sends message to Witness: 'CLEANUP: <polecat>'
3. Witness cleans up polecat

### Option C: Molecule-driven
Define cleanup as final phase of polecat-work molecule:
1. code → test → submit-mr → cleanup

## Note
This reinforces the ephemeral model: polecats exist only for the duration of a single task.


Immediate daemon notification on lifecycle request

When gt handoff sends a lifecycle request to the daemon (via bd mail send deacon/), the daemon only discovers it on its next heartbeat poll (every 5 min). Workers wait unnecessarily for retirement.

## Current Behavior
1. Worker runs gt handoff
2. Lifecycle mail sent to deacon/ via beads
3. Worker blocks waiting for retirement
4. Daemon heartbeat runs (up to 5 min later)
5. Daemon processes lifecycle request and kills session

## Expected Behavior
Lifecycle requests should be processed immediately, not on poll interval.

## Proposed Solutions

### Option A: SIGUSR1 Signal (simplest)
1. Add SIGUSR1 handler in daemon that calls ProcessLifecycleRequests()
2. gt handoff reads daemon.pid and sends SIGUSR1 after mail send

### Option B: Unix Socket
1. Daemon listens on ~/gt/daemon/lifecycle.sock
2. gt handoff connects and sends 'process' message

### Option C: Watchfile + fsnotify
1. gt handoff touches ~/gt/daemon/lifecycle.trigger
2. Daemon uses fsnotify to detect and process

Recommend Option A for simplicity.

## Affected Files
- internal/daemon/daemon.go - add signal handler
- internal/cmd/handoff.go - send signal after mail


Review and audit all GGT beads

Thorough review of all filed beads in gastown GGT repo. Check for: consistency, completeness, correct dependencies, accurate descriptions, proper prioritization. Ensure beads are self-contained and dont rely on external docs.


Improve test coverage in low-coverage packages

Several packages have low test coverage:
- internal/cmd: 6.8%
- internal/mail: 3.6%
- internal/daemon: 12.1%
- internal/doctor: 14.5%
- internal/refinery: 20.6%
- internal/session: 27.8%
- internal/git: 28.8%

Priority should be given to mail, cmd, and daemon packages which handle critical functionality.


Merge: gt-unrd

branch: polecat/Ace
target: main
source_issue: gt-unrd
rig: gastown


Outpost/Worker interfaces: Core abstractions for remote compute

## Overview

Define the core interfaces that all outpost types implement.

## Interfaces

```go
type OutpostType string
const (
    OutpostLocal    OutpostType = "local"
    OutpostSSH      OutpostType = "ssh"
    OutpostCloudRun OutpostType = "cloudrun"
)

type Outpost interface {
    Name() string
    Type() OutpostType
    MaxWorkers() int
    ActiveWorkers() int
    Spawn(issue string, config WorkerConfig) (Worker, error)
    Workers() []Worker
    Ping() error
    SendMail(worker string, msg Message) error  // optional
}

type Worker interface {
    ID() string
    Outpost() string
    Status() WorkerStatus  // idle, working, done, failed
    Issue() string
    Attach() error         // for interactive outposts
    Logs() (io.Reader, error)
    Stop() error
}

type WorkerConfig struct {
    RigPath    string
    BeadsDir   string
    GitBranch  string
    Context    map[string]string  // hints for worker
}
```

## Files

- `internal/outpost/outpost.go` - Outpost interface
- `internal/outpost/worker.go` - Worker interface
- `internal/outpost/config.go` - WorkerConfig, OutpostType

## Notes

This is the foundation for all federation work. Keep interfaces minimal - we can extend later.


Refinery agent: merge queue processing loop

The Refinery agent processes the merge queue, merging polecat work to main.

## Interface

```go
type Refinery struct {
    rig    *Rig
    queue  *MergeQueue
    git    *Git
    mail   *Mailbox
    config RefineryConfig
}

type RefineryConfig struct {
    AutoMerge     bool          // Auto-merge passing MRs
    RunTests      bool          // Run tests before merge
    TestCommand   string        // Command to run tests
    RequireReview bool          // Require review before merge (future)
}

func NewRefinery(rig *Rig, ...) *Refinery

// Lifecycle
func (r *Refinery) Start() error
func (r *Refinery) Stop() error
func (r *Refinery) IsRunning() bool

// Processing
func (r *Refinery) ProcessQueue() error
func (r *Refinery) ProcessMR(mr *MergeRequest) error
```

## Processing Loop

1. Check queue for pending MRs
2. For each pending MR:
   a. Fetch polecat branch
   b. Attempt merge to refinery/rig (local main)
   c. Run tests if configured
   d. If pass: push to origin, mark merged
   e. If fail: mark rejected, notify polecat
3. Sleep, repeat

## Merge Strategy

- Fast-forward when possible
- Merge commit when not
- On conflict: reject MR, polecat must rebase

## Test Integration

If tests configured:
```bash
cd refinery/rig
git merge polecat/branch
<test_command>  # e.g., go test ./...
```
Result determines merge/reject.

## Notifications

On merge success:
- Mail to polecat: "Your work merged"
- Update bead if issue tracked

On merge failure:
- Mail to polecat: "Merge failed: <reason>"
- Include conflict details if applicable

## Dependencies

Needs: Rig management, Git wrapper, Mail system, Merge queue


Phase 4.2: Witness/Refinery patrol molecules

Extend ephemeral patrol pattern to Witness and Refinery.

## Witness Patrol Cycle

mol-witness-patrol-cycle:
1. scan-polecats: Check each polecat status
2. detect-stalls: Find stuck/idle polecats
3. nudge-or-escalate: Take action on stalls
4. log-status: Record cycle results
→ Squash with summary

## Refinery Patrol Cycle

mol-refinery-patrol-cycle:
1. scan-queue: Check merge queue
2. process-ready: Merge ready MRs
3. handle-failures: Deal with conflicts/failures
4. log-status: Record cycle results
→ Squash with summary

## Quiescent Mode

When no work: just log 'no activity' summary.
Witness and Refinery can sleep between cycles until triggered.


CLI: session commands (start, stop, at, list, capture, inject)

Session management CLI commands.

## Commands

### gt session start
Start a polecat session.
```
gt session start <rig>/<polecat> [--issue <id>]
```
- Creates tmux session
- Launches claude in polecat workdir
- Optionally injects initial issue context

### gt session stop
Stop a polecat session.
```
gt session stop <rig>/<polecat> [--force]
```
- Graceful shutdown by default
- --force kills immediately

### gt session at (attach)
Attach to running session.
```
gt session at <rig>/<polecat>
```
- Attaches tmux session to current terminal
- Detach with Ctrl-B D

### gt session list
List all sessions.
```
gt session list [--rig <rig>] [--json]
```
- Shows running/stopped status
- Optionally filter by rig

### gt session capture
Capture recent output from session.
```
gt session capture <rig>/<polecat> [--lines <n>]
```
- Default: last 100 lines
- Useful for checking polecat progress

### gt session inject
Send message to session.
```
gt session inject <rig>/<polecat> -m "message"
gt session inject <rig>/<polecat> -f <file>
```
- Injects text via tmux send-keys
- Used for nudges, notifications

## Address Format

`<rig>/<polecat>` e.g., `wyvern/Toast`

## Implementation

Session subcommand group:
```go
var sessionCmd = &cobra.Command{Use: "session"}
sessionCmd.AddCommand(startCmd, stopCmd, atCmd, listCmd, captureCmd, injectCmd)
```


Configuration in Beads: use pinned beads for rig/agent config

## Summary

Move configuration from JSON files into Beads data plane using pinned beads.

## Motivation

- Config becomes versionable and syncable like issues
- Agents can read config via `bd show`
- Unified data model for everything
- Supports the 'Beads as Universal Data Plane' vision (gt-aqm)

## Config Types to Migrate

### Rig-level (pinned per rig)
- Theme/colors for tmux status line
- Default branch naming conventions
- Merge queue settings
- Witness thresholds

### Agent-level (pinned per role)
- Handoffs (already planned - gt-cu7r)
- Agent preferences
- Current focus/context

### Town-level (pinned at town root)
- Cross-rig settings
- Federation config
- Global themes

## Implementation

1. Implement StatusPinned (beads-6v2) ✓ in progress
2. Create config pinned beads on rig init
3. Add `bd config get/set` commands that read/write pinned beads
4. Migrate existing config.json fields

## Naming Convention

```
<prefix>-cfg-<scope>
gt-cfg-theme      # gastown theme
bd-cfg-merge      # beads merge settings
gm-cfg-town       # town-level config
```

## Dependencies

- beads-6v2: Add StatusPinned to beads schema
- gm-w13: Pinned Beads epic


Ephemeral rig support for ad-hoc batch work

Support for temporary worker rigs for ad-hoc batch work.

## Use Case

Ad-hoc batch work where you want temporary workers:
- gt spawn --epic <epic-id> --ephemeral --workers 3
- Creates temp rig with 3 clones
- Workers process epic children
- Work merges through queue
- Clones cleaned up when done

## Interface

```go
type EphemeralRig struct {
    ID               string
    GitURL           string
    BaseCommit       string
    Workers          []string
    IntegrationBranch string
    EpicID           string  // associated epic (for cleanup trigger)
    CreatedAt        time.Time
}

func InitEphemeralRig(gitURL string, numWorkers int) (*EphemeralRig, error)
func (r *EphemeralRig) AddWorker(name string) error
func (r *EphemeralRig) Destroy(force bool) error
```

## Directory Structure

```
<rig>/ephemeral/
└── rig-a3f7/
    ├── config.json
    ├── Alice/     # clone
    ├── Bob/       # clone
    └── Carol/     # clone
```

## Cleanup Trigger

When all issues in the associated epic are closed AND merged, the ephemeral rig can be destroyed.

## Note

No swarm ID needed - the epic ID provides the grouping. Ephemeral rig is just a convenience for temporary clones.

## Reference

PGT: ephemeral.py (for structure, ignore swarm ID coupling)


🤝 HANDOFF: Investigate beads-sync divergence (221 files)

## Context

gt doctor now detects orphaned code on beads-sync branch. Running it shows:

  beads-sync-orphans: 221 file(s) on beads-sync not in main

This is in the gastown repo (checking from crew/max).

## Background

- Earlier today we recovered orphaned mail migration code lost in merge 96c773f
- Recently simplified architecture: all workers use mayor/rig/.beads (redirects)
- This simplification may have caused beads-sync branch to diverge unexpectedly

## Investigation Steps

1. From crew/max run: git diff main..beads-sync --stat
2. Check if beads-sync should even exist anymore (was for multi-clone sync)
3. If obsolete with redirect architecture, consider deleting it
4. If it has legitimate changes, cherry-pick or merge to main

## Key Question

With all workers using mayor/rig/.beads via redirects, is beads-sync still needed?

## Commands

git log main..beads-sync --oneline | head -20
git diff main..beads-sync -- *.go | head -100


detectSender() doesn't recognize crew workers

## Problem

`detectSender()` in mail.go only detects polecats, not crew workers.

## Current Code (line 445)

```go
// If in a rig's polecats directory, extract address
if strings.Contains(cwd, "/polecats/") {
    // extract rig/polecat
}

// Default to mayor
return "mayor/"
```

## Symptom

Emma (crew worker at `/Users/stevey/gt/beads/crew/emma`) runs:
- `gt mail inbox` → checks `mayor/` inbox (wrong!)
- Should check `beads/emma` or `beads/crew/emma`

## Fix

Add crew detection:
```go
// If in a rig's crew directory, extract address
if strings.Contains(cwd, "/crew/") {
    parts := strings.Split(cwd, "/crew/")
    if len(parts) >= 2 {
        rigPath := parts[0]
        crewName := strings.Split(parts[1], "/")[0]
        rigName := filepath.Base(rigPath)
        return fmt.Sprintf("%s/%s", rigName, crewName)
    }
}
```

## Also Check

- `gt prime` correctly detects role, so there may be another detection function that works
- Should unify detection logic


gt mq list: doesn't show submitted MRs

After submitting MRs with gt mq submit, gt mq list gastown shows empty queue.

## Reproduction
1. gt mq submit --issue gt-h5n.5 --branch polecat/Scabrous
2. gt mq list gastown → (empty)
3. bd list --type=merge-request → shows the MR

## Expected
gt mq list should show submitted MRs

## MR example
gt-ts4u has rig: gastown in description, type=merge-request, status=open


gt polecat remove --all: bulk polecat teardown

Currently gt polecat remove only accepts one polecat at a time. Need bulk operations:

## Requested
- `gt polecat remove gastown --all` - remove all polecats from a rig
- `gt polecat remove gastown/A gastown/B ...` - remove multiple by name

## Context
After a swarm completes, tearing down 20 polecats one at a time is tedious.
Ephemeral workers should be easy to create and destroy in bulk.

## Related
- gt-c92: CLI: all command for batch polecat operations


Outpost CLI commands: gt outpost list/status/add

## Overview

CLI commands for managing outposts.

## Commands

```bash
# List configured outposts
gt outpost list
NAME            TYPE       WORKERS   STATUS
local           local      2/4       healthy
gce-burst       ssh        0/8       healthy
cloudrun-burst  cloudrun   0/20      healthy

# Detailed status
gt outpost status [name]
Outpost: cloudrun-burst
Type: cloudrun
Project: my-gcp-project
Region: us-central1
Service: gastown-worker
Active Workers: 3/20
Cost (today): $0.42
Status: healthy

# Add new outpost interactively
gt outpost add
? Outpost type: [local/ssh/cloudrun]
> cloudrun
? Name: cloudrun-burst
? GCP Project: my-gcp-project
...

# Add via flags
gt outpost add cloudrun --name burst --project my-proj --region us-central1

# Remove outpost
gt outpost remove <name>

# Test connectivity
gt outpost ping <name>
```

## Files

- `cmd/gt/outpost.go` - Cobra command group
- `cmd/gt/outpost_list.go`
- `cmd/gt/outpost_status.go`
- `cmd/gt/outpost_add.go`

Depends on: gt-9a2.3 (config/manager)


Merge: gt-3x0z.4

branch: polecat/rictus
target: main
source_issue: gt-3x0z.4
rig: gastown


Add gt decommission command for clean swarm/worker shutdown

Single command to cleanly shut down a swarm and its workers: cancel swarm, stop sessions, optionally remove polecats. E.g. gt decommission gt-hw6 --cleanup


Mayor restart loop: auto-prime and mail check on attach

When mayor session cycles (after /exit, gt mayor attach reconnects), the new session lacks context.

## Current Behavior
- Mayor exits, shell script loop restarts claude
- New session starts cold - no gt prime, no mail check
- Mayor is disoriented, doesn't know prior context
- Strong 'antimemetic properties' - we discuss fixing it, then forget

## Expected Behavior
After restart, mayor should automatically:
1. Run gt prime (load role context)
2. Check gt mail inbox (find handoff messages)
3. Look for 🤝 HANDOFF messages from predecessor

## Possible Fixes
1. Startup hook in Claude Code settings that runs gt prime
2. CLAUDE.md instructions that say 'FIRST THING: run gt prime'
3. Shell script wrapper that injects context before attach
4. Modify gt mayor attach to inject prime command

## Related
- gt-vci: Mayor handoff mail template
- gt-sye: Mayor startup protocol prompting


MVP Cutover: GGT replaces PGT for batch work

When this is closed, stop using town and start using gt.

## Acceptance Criteria

1. gt spawn assigns issue to polecat and starts session
2. gt spawn --epic spawns workers for all epic children
3. gt session manages tmux lifecycle
4. gt send / gt inbox work for mail
5. Refinery processes merge queue with semantic merges
6. Integration branches created and landed correctly
7. gt stop --all halts all sessions
8. One successful test batch completed end-to-end

## What Must Work

- Spawn polecat with issue assignment
- Spawn workers for epic children
- Session start/stop/attach
- Mail send/inbox/read
- Refinery merge loop (semantic)
- Integration branch → main landing
- Witness cleanup protocol
- Emergency stop

## What Can Be Deferred

- Doctor checks (use PGT)
- TUI dashboard
- Plugin system
- Federation
- Ephemeral rigs
- Detailed landing reports

## Test Plan

1. Create epic with 2 tasks, spawn 2 workers
2. Verify polecats get assigned and sessions start
3. Simulate task completion
4. Verify Refinery merges to integration
5. Verify landing to main
6. Verify cleanup

## Validation

Run one real batch implementing GGT issues using GGT.

## Note

No "swarm IDs" - just spawn workers for epic, let merge queue coordinate.


Test: Alpha to Beta

Sibling communication test


Pinned bead naming convention for all roles

Establish consistent naming convention for pinned beads across all roles.

## Problem

Every role needs a pinned bead for molecule attachment, handoff state, and identity.
We need a consistent naming convention so gt tools can find the pinned bead for any role.

## Proposed Convention

  {role}.pinned                    - Singleton roles (deacon, mayor)
  {rig}-{role}.pinned              - Per-rig roles (witness, refinery)
  {rig}-{name}.pinned              - Named agents (polecats, crew)

Examples:
- deacon.pinned
- mayor.pinned
- gastown-witness.pinned
- gastown-refinery.pinned
- gastown-furiosa.pinned (polecat)
- gastown-max.pinned (crew)

## Storage Location

| Role | Pinned Bead Location |
|------|---------------------|
| Mayor | ~/gt/.beads/ (town level) |
| Deacon | ~/gt/.beads/ (town level) |
| Witness | {rig}/.beads/ (rig level) |
| Refinery | {rig}/.beads/ (rig level) |
| Polecat | {rig}/polecats/{name}/.beads/ |
| Crew | {rig}/crew/{name}/.beads/ |

## Why This Matters

1. Name recycling: Polecats reuse names so their pinned beads persist
2. Molecule attachment: gt mol bond needs to find the pinned bead
3. gt prime: Can show you are working on X from pinned bead
4. Crash recovery: Resume from pinned beads attached molecule

## Tasks

- Document naming convention in architecture.md
- Update gt prime to find pinned bead by convention
- Update gt mol bond to use conventional name
- Create pinned beads on role startup if missing
- Add gt pinned command to show/manage pinned beads

## Related

- gt-rana.1: Attachment field on pinned beads (closed)
- gt-id36.2: Deacon marching orders (pinned bead)


Fetch and conflict check: git operations for MR

Implement git operations for MR processing.

Steps:
1. git fetch origin <mr.branch>
2. git checkout <mr.target> (main or integration/xxx)
3. git merge --no-commit --no-ff <mr.branch> (test merge)
4. Check for conflicts
5. If conflicts: abort and return Failure(conflict, files)
6. If clean: abort (actual merge in next step)

Helper functions:
- FetchBranch(branch string) error
- CheckConflicts(source, target string) ([]string, error)

Reference: docs/merge-queue-design.md#process-merge-steps


Update vision.md with proto/mol/wisp terminology

Update the Steam Engine Metaphor section to use consistent phase terminology:

Current (vision.md):
- Proto molecules = fuel (templates)
- Wisps = steam (transient execution traces)
- Digests = distillate (permanent records)

New terminology:
- **Proto** = crystal/solid - frozen template
- **Mol** = liquid - reified durable instance (tracked in git)
- **Wisp** = gas - ephemeral instance (evaporates after squash)
- **Digest** = distillate - compressed summary after squash

Key clarification needed:
- Proto → bond → creates either Mol (durable) or Wisp (ephemeral)
- The choice of Mol vs Wisp depends on --wisp flag
- Default is Mol (durable, recorded in main beads)
- Wisp lives in .beads-ephemeral/, squashes away


gt daemon: Background service management

## Summary

ONE daemon for all Gas Town - a simple Go process (not a Claude agent) that:
1. Pokes agents periodically (heartbeat)
2. Processes lifecycle requests
3. Restarts sessions when agents request cycling

## Architecture

Daemon (gt daemon)
- Pokes Mayor: "HEARTBEAT: check your rigs"
- Pokes each Witness: "HEARTBEAT: check your workers"
- Has inbox at daemon/ for lifecycle requests
- Restarts sessions on cycle requests

## NOT the daemon's job:
- Making decisions (Witnesses do that)
- Running Claude (it's a Go process)
- Processing work (polecats do that)
- Direct polecat management (Witnesses do that)

The daemon is a **dumb scheduler** - poke things, execute lifecycle requests. All intelligence is in agents.

## Commands

- gt daemon start: Start daemon (background)
- gt daemon stop: Stop daemon
- gt daemon status: Show daemon status
- gt daemon logs: View daemon logs

## Daemon Loop

Every heartbeat interval:
1. Poke Mayor
2. For each rig: Poke Witness
3. Process lifecycle requests from daemon/ inbox
4. Check for dead sessions, restart if cycle requested

## Lifecycle Request Handling

Daemon checks its inbox (daemon/) for lifecycle requests:
- From Mayor: cycle/restart Mayor session
- From Witnesses: cycle/restart Witness session

On request:
1. Verify agent state shows requesting_cycle
2. Kill session
3. Start new session
4. Clear requesting_cycle flag

## Poke Protocol

Poke = tmux inject "HEARTBEAT: do your job"
- Agent ignores if already working
- Agent wakes up if idle
- Idempotent - multiple pokes are fine

## Lifecycle Hierarchy

- Daemon manages: Mayor, all Witnesses
- Witness manages: Polecats, Refinery (per rig)
- Crew: self-managed (human workspace)

## Related Issues

- gt-kmn.11: Daemon heartbeat details
- gt-gby: gt handoff command (unified lifecycle)
- gt-u1j.9: Fold witness daemon into this


Molecule Workflow Engine: Composable Crystallized Workflows

# Epic: Molecule Workflow Engine

**Vision**: Molecules are crystallized, composable, nondeterministic-idempotent workflow templates. Any worker can pick up where any other worker was interrupted and continue along the molecule.

**Christmas Target**: Full molecule-based workflow engine operational by Dec 25, 2025.

## The Core Concepts

1. **Molecule**: Read-only workflow template (beads issue with type=molecule)
2. **Atom/Step**: Individual work unit with prose instructions
3. **Bond**: Dependency between steps
4. **Polymer/Derived**: Molecule composed from other molecules
5. **Instance**: Concrete beads created when molecule is attached to work

## Key Features Needed

### 1. Molecule Composition (Includes Directive)
Molecules can include other molecules:
\`\`\`markdown
## Molecule: gastown-polecat
Includes: mol-engineer-in-box

## Step: install-binary
Build and install the local gt binary.
Needs: submit
\`\`\`

### 2. Standard Molecules
- mol-install-go-binary: Single step to build/install gt
- mol-gastown-polecat: engineer-in-box + install-binary

### 3. Spawn Integration
\`gt spawn --issue <id> --molecule <mol-id>\` creates molecule instance then starts polecat on first ready step.

### 4. Nondeterministic Idempotence
- Steps are atomic (pending → in_progress → completed)
- Any worker can pick up any ready step
- Step timeout/recovery for stuck workers

## Success Criteria
- [ ] Polecats can be spawned with mol-gastown-polecat
- [ ] Derived molecules work end-to-end
- [ ] 10+ polecat swarm completes molecule workflows
- [ ] install-go-binary step runs after successful merges


Merge: gt-xw7b

branch: polecat/morsov
target: main
source_issue: gt-xw7b
rig: gastown


Add molecule to update local go binary on push to main

When pushing to main branch, automatically rebuild and install the gt binary on the local machine so changes are immediately available.


mol-theme-generate: Custom name pool generation via cognition

Currently polecat name themes are hardcoded in namepool.go. Simple theme selection is fine as static config, but custom name generation should be a molecule.

Examples requiring cognition:
- "Generate 50 polecat names in the style of [book/movie/game]"
- "Create names that match the project's domain (medical, financial, etc.)"
- "Extend the mad-max theme with 20 more obscure characters"

## Molecule: theme-generate
Generate custom polecat names for a rig.

## Step: analyze-request
Understand the naming request:
- Theme style or source material
- Number of names needed
- Any constraints (length, format)

## Step: generate-candidates
Generate candidate names matching the style.
Aim for 2x the requested count.

## Step: validate-names
Filter candidates:
- No duplicates with existing themes
- Appropriate length (3-15 chars)
- No problematic terms

## Step: create-theme
Write the custom theme to rig config or beads.
Register in name pool.
Needs: validate-names

## Notes
- Output is a new theme entry in BuiltinThemes equivalent
- Could be stored as a pinned bead for persistence