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claude-code: add rules support

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Support the `rules` directory for modular memory files.

Signed-off-by: Austin Horstman <khaneliman12@gmail.com>
This commit is contained in:
Austin Horstman 2025-12-19 12:39:47 -06:00
parent 89c9508bbe
commit 9bf54edf10
1 changed files with 56 additions and 0 deletions
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56
modules/programs/claude-code.nix
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@ -197,6 +197,47 @@ in
};
};
rules = lib.mkOption {
type = lib.types.attrsOf (lib.types.either lib.types.lines lib.types.path);
default = { };
description = ''
Modular rule files for Claude Code.
The attribute name becomes the rule filename, and the value is either:
- Inline content as a string
- A path to a file containing the rule content
Rules are stored in .claude/rules/ directory.
All markdown files in .claude/rules/ are automatically loaded as project memory.
'';
example = lib.literalExpression ''
{
code-style = '''
# Code Style Guidelines
- Use consistent formatting
- Follow language conventions
''';
testing = '''
# Testing Conventions
- Write tests for all new features
- Maintain test coverage above 80%
''';
security = ./rules/security.md;
}
'';
};
rulesDir = lib.mkOption {
type = lib.types.nullOr lib.types.path;
default = null;
description = ''
Path to a directory containing rule files for Claude Code.
Rule files from this directory will be symlinked to .claude/rules/.
All markdown files in this directory are automatically loaded as project memory.
'';
example = lib.literalExpression "./rules";
};
agentsDir = lib.mkOption {
type = lib.types.nullOr lib.types.path;
default = null;
@ -325,6 +366,10 @@ in
assertion = !(cfg.memory.text != null && cfg.memory.source != null);
message = "Cannot specify both `programs.claude-code.memory.text` and `programs.claude-code.memory.source`";
}
{
assertion = !(cfg.rules != { } && cfg.rulesDir != null);
message = "Cannot specify both `programs.claude-code.rules` and `programs.claude-code.rulesDir`";
}
{
assertion = !(cfg.agents != { } && cfg.agentsDir != null);
message = "Cannot specify both `programs.claude-code.agents` and `programs.claude-code.agentsDir`";
@ -386,6 +431,11 @@ in
if cfg.memory.text != null then { text = cfg.memory.text; } else { source = cfg.memory.source; }
);
".claude/rules" = lib.mkIf (cfg.rulesDir != null) {
source = cfg.rulesDir;
recursive = true;
};
".claude/agents" = lib.mkIf (cfg.agentsDir != null) {
source = cfg.agentsDir;
recursive = true;
@ -406,6 +456,12 @@ in
recursive = true;
};
}
// lib.mapAttrs' (
name: content:
lib.nameValuePair ".claude/rules/${name}.md" (
if lib.isPath content then { source = content; } else { text = content; }
)
) cfg.rules
// lib.mapAttrs' (
name: content:
lib.nameValuePair ".claude/agents/${name}.md" (