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Add configurable Claude Code model selection

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Add allowArbitraryClaudeCodeModelSelection option to development role
to control whether model specifications are preserved in humanlayer
commands and agents. Defaults to false (strip models) for backward
compatibility. Enable on home-darwin-work to preserve model specs
for opus/sonnet selection.
This commit is contained in:
John Ogle
2025-11-24 14:04:11 -08:00
parent e88f3580e9
commit e218822566
2 changed files with 33 additions and 8 deletions
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36
home/roles/development/default.nix
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@@ -18,6 +18,20 @@ in
{
options.home.roles.development = {
enable = mkEnableOption "Enable development tools and utilities";
allowArbitraryClaudeCodeModelSelection = mkOption {
type = types.bool;
default = false;
description = ''
Whether to preserve model specifications in Claude Code humanlayer commands and agents.
When false (default), the model: line is stripped from frontmatter, allowing Claude Code
to use its default model selection.
When true, the model: specifications from the source files are preserved, allowing
commands to specify opus/sonnet/haiku explicitly.
'';
};
};
config = mkIf cfg.enable {
@@ -46,9 +60,11 @@ in
filename=$(basename "$file" .md)
dest="$HOME/.claude/commands/humanlayer:''${filename}.md"
# Copy file and remove the "model:" line from frontmatter
# This allows Claude Code Pro to use the default model
${pkgs.gnused}/bin/sed '/^model:/d' "$file" > "$dest"
# Copy file and conditionally remove the "model:" line from frontmatter
${if cfg.allowArbitraryClaudeCodeModelSelection
then "cp \"$file\" \"$dest\""
else "${pkgs.gnused}/bin/sed '/^model:/d' \"$file\" > \"$dest\""
}
fi
done
@@ -58,13 +74,19 @@ in
filename=$(basename "$file" .md)
dest="$HOME/.claude/agents/humanlayer:''${filename}.md"
# Copy file and remove the "model:" line from frontmatter
# This allows Claude Code Pro to use the default model
${pkgs.gnused}/bin/sed '/^model:/d' "$file" > "$dest"
# Copy file and conditionally remove the "model:" line from frontmatter
${if cfg.allowArbitraryClaudeCodeModelSelection
then "cp \"$file\" \"$dest\""
else "${pkgs.gnused}/bin/sed '/^model:/d' \"$file\" > \"$dest\""
}
fi
done
$DRY_RUN_CMD echo "Claude Code humanlayer commands and agents installed successfully (model selection removed)"
$DRY_RUN_CMD echo "Claude Code humanlayer commands and agents installed successfully${
if cfg.allowArbitraryClaudeCodeModelSelection
then " (model specifications preserved)"
else " (model selection removed)"
}"
'';
# Note: modules must be imported at top-level home config