Semantic git queries via MCP. Beyond git log — answer who/what/when/why about any line, file, or branch.
Pairs with terminal-history-mcp and localhost-mcp. Together: what you ran, what's running, what you changed.
Devs ask these constantly; git answers poorly:
"Who last touched this function?" — git blame only gives lines, not authors-by-region
"What PR introduced this line?" — manual: blame → commit SHA → search GH
"Which files always change together?" — no built-in
"Show unmerged branches older than 30 days" — bash one-liner gymnastics
"What did I work on last week?" — manual log scrub
LLM agents need this context to make safe edits. Currently they git log -n 5 and miss everything.
Related MCP server: semamerge
npm install -g git-insight-mcpWire into Claude Code:
claude mcp add --scope user git-insight -- git-insight-mcpOr any MCP-compatible client. Runs as a stdio MCP server.
For PR / issue lookups, set a GitHub token:
export GH_TOKEN=ghp_...Without a token, the local-git tools still work. PR linkage is skipped.
Tool | Purpose |
| Group blame by author. Lines, commits, last-touched, primary owner. Optional line-range narrowing. |
| Find the PR that introduced a line (or commit). Parses merge messages first; falls back to GitHub API. |
| Files most often changed together with the input file. |
| List branches with ahead/behind, last commit, merged status, stale flag. |
| Standup helper: author's commits + files + ins/del in a window. |
| Full commit context: subject, body, files, PR, related issues. |
who_touched){
"file": "src/auth.ts",
"total_lines": 124,
"authors": [
{ "name": "alice", "email": "alice@x.com", "lines": 87, "commits": 12, "last_commit_date": "2026-04-12T10:33:01.000Z" },
{ "name": "bob", "email": "bob@x.com", "lines": 37, "commits": 4, "last_commit_date": "2026-01-03T18:14:55.000Z" }
],
"primary_owner": "alice"
}git-insight-mcp who-touched src/auth.ts
git-insight-mcp co-change src/auth.ts
git-insight-mcp branches
git-insight-mcp recent alice
git-insight-mcp commit a3e577e
git-insight-mcp intro-pr src/auth.ts:42
git-insight-mcp intro-pr a3e577e
git-insight-mcp # MCP stdio servergit clone https://github.com/HasanJahidul/git-insight-mcp.git
cd git-insight-mcp
npm install
npm run build
node dist/cli.js branchesGitHub only (no GitLab/Bitbucket yet).
co_change is O(window × files-per-commit) — defaults capped at 1000 commits.
Function-level blame is by line range, not AST. Renames not yet tracked.
GH API rate limit applies (5000/h authed). PR results uncached this version.
MIT
Read-only. Inventory of branches with ahead/behind counts versus the default branch, last commit date and author, merged status, and a stale flag (no commits in stale_days days). Use it to find unmerged, abandoned branches. The default branch itself is excluded from the list. Pure local git; no network. Returns { count, branches, default_branch_excluded }.
Inputs: cwd, remote, stale_days. Returns: count, branches, default_branch_excluded
Read-only. Files that historically change together with the input file — answers "if I edit X, what else should I check?". Mines up to window recent commits that touch file, counts how often each other file appears alongside it, and returns those above threshold, with the co-occurrence count and ratio (count / commits-touching-file), capped at limit. Pure local log mining; no network. Cost is O(window × files-per-commit) — keep window ≤ a few thousand on large repos.
Inputs: file (required), cwd, limit, window, +1 more. Returns: file, co_changed, total_commits_touching
Read-only. Everything about one commit in a single call: subject, body, changed files with per-file insertions/deletions, totals, the linked PR (parsed from the merge message, or via the GitHub API when GH_TOKEN/GITHUB_TOKEN is set), and issue numbers referenced in the message (Fixes #N, Closes #N). Errors if the SHA does not resolve in cwd. May make one outbound GitHub API call for PR enrichment.
Inputs: sha (required), cwd. Returns: pr, sha, body, date, +6 more
Read-only. Find the pull request that introduced a line or a commit. First resolves the line to a commit via git blame, then reads the local merge-commit message; if that has no PR reference and GH_TOKEN/GITHUB_TOKEN is set, falls back to the GitHub REST API. Without a token the local path still works; pr is null when nothing can be resolved (e.g. rebase-merged with no PR ref). Provide either commit, or both file and line. May make one outbound GitHub API call (subject to the 5000/h authed rate limit).
Inputs: cwd, file, line, commit. Returns: pr, author, commit, source, +2 more
Read-only. Standup / changelog helper: one author's commits in a time window with files touched and insertion/deletion totals. Defaults to the repo's user.name and the last 7 days. Pure local git; no network. Returns { author, since, commit_count, commits[] } where each commit has subject, date, files, insertions, deletions.
Inputs: cwd, limit, since, author. Returns: since, author, commits, commit_count
Read-only. Code ownership for a file via git blame, aggregated by author. Returns each author's line count, commit count, and most recent commit date, plus the primary_owner (most lines). Pass line_start/line_end to scope to one region (e.g. a single function). Errors if cwd is not a git repo or file is untracked. Cost scales with file size; instant for typical files.
Inputs: file (required), cwd, function, line_end, +1 more. Returns: file, authors, total_lines, primary_owner
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
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Scored across 6 tools
Each tool targets a distinct git analysis task: branches, file co-change, commit details, PR introduction, recent work, and file ownership. No functional overlap is apparent.
All names use lowercase snake_case and are descriptive compound nouns (e.g., branch_hygiene, who_touched). While not strictly verb_noun, the pattern is consistent and readable.
Six tools is a well-scoped set for a git insight server, covering key analyses without being overwhelming or too sparse.
The set covers branch analysis, co-change, commit details, PR discovery, recent work, and blame. Missing common operations like branch diff or commit log filtering, but still functional for the intended domain.
Shared context for your codebase: a hosted code knowledge graph over MCP. Free plan, OAuth sign-up.
Deterministic context layer for your codebase: change impact, blast radius, answers with receipts.
AI-native git hosting — repos, PRs, issues, CI gates, and AI code review over MCP (60 tools).
Hosted code graph over MCP: exact callers, dependencies, and cross-repo blast radius for AI agents.
