Last reviewed: 2026-07-16 **Project:** GitNexus · **Environment:** dev · **Maintainer:** repository maintainers (see GitHub) Follow **AGENTS.md** for the canonical rules; this file adds Claude Code–specific deltas. Cursor-specific notes live only in `AGENTS.md`. ## Scope See the **Scope** table in [AGENTS.md](AGENTS.md) for read/write/execute/off-limits boundaries. Cursor-specific workflow notes also live only in AGENTS.md. ## Model Configuration - **Primary:** Pin per **Claude Code** / Anthropic org policy (explicit model id). Do not rely on an unversioned `latest` alias for governed workflows. - **Fallback:** As configured in Claude Code (organization default or user override). - **Notes:** The GitNexus CLI analyzer does not call an LLM. ## Execution Sequence (complex tasks) Same discipline as [AGENTS.md](AGENTS.md): before large multi-step work, state which **AGENTS.md** / **GUARDRAILS.md** rules apply, current **Scope**, and planned validation commands (`npm test`, `tsc`, etc.). When pausing, summarize progress in the chat or a **local** scratch file (do not add `HANDOFF.md` to the repo), then `/clear` and resume with that summary. ## Claude Code hooks Prefer **PreToolUse** hooks for hard gates (e.g. tests before `git_commit`). Adapt hook commands to `gitnexus/` npm scripts. ## Context budget If always-on instructions grow, load deep conventions via conditional reads (e.g. *“When writing new code, read STANDARDS.md”*) instead of pasting long blocks here. In Cursor, prefer `.cursor/index.mdc` plus optional `.cursor/rules/*.mdc` globs (see [AGENTS.md](AGENTS.md) § Context budget). ## Reference Documentation - **This repository:** [AGENTS.md](AGENTS.md) (Cursor + monorepo notes), [ARCHITECTURE.md](ARCHITECTURE.md), [CONTRIBUTING.md](CONTRIBUTING.md), [GUARDRAILS.md](GUARDRAILS.md). - **Call & inheritance resolution:** See ARCHITECTURE.md § Scope-Resolution Pipeline. Shared pipeline code in `gitnexus/src/core/ingestion/` must not name languages — use `LanguageProvider` / `ScopeResolver` hooks instead (see AGENTS.md). (The legacy call-resolution DAG was removed in #942.) - **GitNexus:** standard skills in `.claude/skills/gitnexus-*/`; MCP and indexed-repo rules live only in [AGENTS.md](AGENTS.md) (`gitnexus:start` … `gitnexus:end`). See **GitNexus rules** below. - **Engineering plans, execution & review:** `/gitnexus-plan ` (implementation-ready plans via GitNexus + statement-level PDG + source verification; Deepen mode for existing plans), `/gitnexus-work [plan]` (executes a plan as impact-checked, detect_changes-gated atomic commits), `/gitnexus-review [PR|branch|range|local]` (read-only graph-backed review), `/gitnexus-lfg ` (plan with depth asked up front → proceed/stop gate → work → review pipeline). Specs in `.claude/skills/gitnexus-{plan,work,review,lfg}/SKILL.md` (see AGENTS.md § Engineering planning & execution). ## Changelog | Date | Version | Change | |------|---------|--------| | 2026-07-20 | 1.8.0 | The CI review agent runs `gitnexus-review` as a coordinated swarm — six `ci-personas/` lanes dispatched via the `Agent` tool with a bounded critic gate. | | 2026-07-16 | 1.7.0 | `/gitnexus-plan` asks depth up front in interactive runs; `/gitnexus-lfg` gate slimmed to proceed/stop. | | 2026-07-16 | 1.6.0 | Renamed `/gitnexus-pr-review` to `/gitnexus-review` and added PR, branch/range, and local-change targets. | | 2026-07-11 | 1.5.0 | Added `/gitnexus-work` and `/gitnexus-lfg` to the engineering plans & execution pointer. | | 2026-07-11 | 1.4.0 | Added `/gitnexus-plan` pointer to Reference Documentation. | | 2026-04-13 | 1.3.0 | Updated GitNexus index stats after DAG refactor. | | 2026-03-24 | 1.2.0 | Removed duplicated gitnexus:start block and scope table; replaced with pointers to AGENTS.md. | | 2026-03-23 | 1.1.0 | Updated agent instructions to match AGENTS.md. | | 2026-03-22 | 1.0.0 | Added structured header and changelog. | --- ## GitNexus rules See the ` … ` block in **[AGENTS.md](AGENTS.md)** for the canonical MCP tools, impact analysis rules, and index instructions. # GitNexus — Code Intelligence This project is indexed by GitNexus as **GitNexus** (248612 symbols, 565510 relationships, 918 execution flows). > Index stale? Run `node .gitnexus/run.cjs analyze --index-only` from the project root — it auto-selects an available runner. No `.gitnexus/run.cjs` yet? Bootstrap with `npx`, `bunx`, or `pnpm dlx` — e.g. `bunx gitnexus@latest analyze` (npm 11 npx crash; #1939). ## Always Do - **MUST run impact analysis before editing.** Use `impact({target: "symbolName", direction: "upstream"})` (MCP) or `node .gitnexus/run.cjs impact "symbolName" --direction upstream --repo .` (CLI fallback); report callers, processes, and risk. Never substitute grep for graph analysis. For unified PDG impact, add `mode: "pdg"` with optional `line: ` — it returns statement-level `affectedStatements` over CDG + REACHING_DEF and inter-procedural symbols in `interproceduralByDepth`/`byDepth`; no-layer/degraded PDG results are UNKNOWN-risk notes (`--pdg` layer). CLI equivalent: `node .gitnexus/run.cjs impact "symbolName" --direction upstream --mode pdg --line --repo .`. - **MUST analyze graph changes before committing.** Use `detect_changes({scope: "all"})` (MCP) or `node .gitnexus/run.cjs detect-changes --scope all --repo .` (CLI fallback). `partial: true` or `truncated: true` is not a clean check — a zero means unseen, not unaffected; re-run it. For regression review: `detect_changes({scope: "compare", base_ref: "main"})` or `node .gitnexus/run.cjs detect-changes --scope compare --base-ref "main" --repo .`. - MUST warn on HIGH/CRITICAL `risk` pre-edit; never use `riskSharedAxes` to waive a HIGH/CRITICAL `risk` warning. Compare File/symbol: MCP File omits axes; Graph-RAG expands File. - **MUST treat `risk: UNKNOWN` as unresolved, not as low.** An empty caller set is not evidence the symbol is unused — it can also mean the callers are not resolvable by the index (plain-object property access, dynamic dispatch, cross-language calls). `impact` pairs `UNKNOWN` with a `riskNote` saying so. Confirm with a text search before treating the symbol as safe to change or delete; do not proceed on the strength of a zero. - **MUST use `query({search_query: "concept"})` for concepts/flows, `context({name: "symbolName"})` for a named symbol, or `impact` for blast radius, on read-only callers, dependencies, imports, or execution flow.** Graph first; text search only for empty/`UNKNOWN`/literals. - For security review, `explain({target: "fileOrSymbol"})` lists taint findings (source→sink flows; needs `analyze --pdg`). - For control/data dependence, `pdg_query({mode: "controls", target: "fileOrSymbol"})` answers "under what condition does X run?" (CDG, incl. guard clauses) and `pdg_query({mode: "flows", target, variable})` traces "where does variable Y flow?" (REACHING_DEF). `--pdg` layer. ## Never Do - NEVER edit a function, class, or method before MCP/CLI impact analysis. - NEVER ignore HIGH or CRITICAL risk warnings from impact analysis, and never read `UNKNOWN` as an all-clear — it means the walk could not answer, which is the one verdict that requires confirming by other means. - NEVER rename symbols with find-and-replace — use `rename` which understands the call graph. - NEVER commit before MCP/CLI graph change analysis. ## Resources | Resource | Use for | | --- | --- | | `gitnexus://repo/GitNexus/context` | Codebase overview, check index freshness | | `gitnexus://repo/GitNexus/clusters` | All functional areas | | `gitnexus://repo/GitNexus/processes` | All execution flows | | `gitnexus://repo/GitNexus/process/{name}` | Step-by-step execution trace | ## CLI | Task | Read this skill file | | --- | --- | | Understand architecture / "How does X work?" | `.claude/skills/gitnexus-exploring/SKILL.md` | | Blast radius / "What breaks if I change X?" | `.claude/skills/gitnexus-impact-analysis/SKILL.md` | | Trace bugs / "Why is X failing?" | `.claude/skills/gitnexus-debugging/SKILL.md` | | Rename / extract / split / refactor | `.claude/skills/gitnexus-refactoring/SKILL.md` | | Tools, resources, schema reference | `.claude/skills/gitnexus-guide/SKILL.md` | | Index, status, clean, wiki CLI commands | `.claude/skills/gitnexus-cli/SKILL.md` |