Module rules_inject 

Rules + SKILL.md injection for every supported agent, split by concern (GL#440): content (payloads), targets (agent catalog), detect (installation checks), write (atomic file surgery), skills (SKILL.md). This hub owns the shared types and the orchestration entry points.

Structs

InjectResult

RulesTargetStatus

Constants

GEMINI_DEDICATED_CONTEXT_FILENAME

The context.fileName entry registered for Gemini in dedicated mode.

RULES_END_MARKER

RULES_MARKER

RULES_VERSION_STR

Functions

any_rules_marker_present

Returns true if a lean-ctx rules marker is present in any supported agent’s rules file (checking both the shared and dedicated layouts).

canonical_rules_block

The canonical shared rules block lean-ctx injects into a host instruction file (CLAUDE.md / CODEBUDDY.md / AGENTS.md). Exposed for honest per-turn overhead accounting (see core::context_overhead, GitHub #361).

check_rules_freshness

Check if the rules file for a given MCP client is up-to-date. Returns Some(message) if rules are stale/missing, None if current.

collect_rules_status

dedicated_session_summary

Compact, agent-agnostic tool-mapping summary injected as SessionStart additionalContext in rules_injection = "dedicated" mode.

gemini_dedicated_rules_path

Dedicated-mode rules file for Gemini CLI, auto-loaded via settings.json context.fileName instead of polluting ~/.gemini/GEMINI.md. The filename is deliberately distinctive: Gemini discovers context files by name across the project tree, so a generic lean-ctx.md would get picked up everywhere.

inject_all_rules

inject_rules_for_agent

Inject global rules for a single agent (by CLI key like “opencode”, “cursor”, etc.). Used by init --agent to ensure global rules are written alongside MCP config.

install_all_skills

Install SKILL.md for all detected agents. Returns Vec<(display_name, was_new_or_updated)>.

install_skill_for_agent

Install SKILL.md for a specific agent. Returns the installed path.

opencode_dedicated_rules_path

Dedicated-mode rules file for OpenCode, auto-loaded via opencode.json instructions[] (absolute path) instead of polluting ~/.config/opencode/AGENTS.md.

rules_dedicated_markdown

rules_shared_content