~ / rigs / jgravelle / jcodemunch-mcp

jgravelle/jcodemunch-mcp

Cut AI token costs 95%+ on code exploration. The leading MCP server for precise, symbol-level GitHub code retrieval via tree-sitter AST. Works with Claude Code, Cursor & any MCP client. 313B+ tokens saved.

↗ GitHub ★ 2,726 other updated 7d ago project Claude Code Codex Claude plugin

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ARCHETYPE

Skill Collector

Ten-plus skills loaded on demand. A procedural-knowledge library.

CONTEXT TAX · EVERY TURN

~35.5k tokens

Context hog · median rig: 2.3k · breakdown

GUARDRAILS

3/5

Blocks destructive commands · Pre-tool screening hook · No YOLO mode · details

Copy this rig

# review before running: this installs third-party code
$ npx degit jgravelle/jcodemunch-mcp/.claude ./rig-jcodemunch-mcp  # inspect, then merge into .claude/

MCP servers are added to Claude Code at local scope; env vars are shown as YOUR_… placeholders — we never store values. Files are fetched with degit into a separate folder so you can review before merging.

Merge into .claude/settings.json (project) or ~/.claude/settings.json (user). Hook commands reference scripts in the source repo — copy those too.

{
  "permissions": {
    "deny": [
      "Bash(git push --force*)",
      "Bash(git push -f*)",
      "Bash(git push * --force*)",
      "Bash(git push * -f *)",
      "Bash(git push --force-with-lease*)",
      "Bash(git tag v*)",
      "Bash(git tag -a*)",
      "Bash(git tag -s*)",
      "Bash(git tag -f*)",
      "Bash(git tag -d*)",
      "Bash(git tag --force*)",
      "Bash(git tag --delete*)",
      "Bash(git tag --annotate*)",
      "Bash(git push --tags*)",
      "Bash(git push origin v*)",
      "Bash(gh release create*)",
      "Bash(gh release edit*)",
      "Bash(gh release delete*)",
      "Bash(gh release upload*)",
      "Bash(gh workflow run*)",
      "Bash(gh pr merge*)",
      "Bash(gh issue delete*)",
      "Bash(gh repo delete*)",
      "Bash(twine upload*)",
      "Bash(*twine upload*)",
      "Bash(*mcp-publisher* publish*)",
      "Bash(*mcp-publisher* login*)",
      "PowerShell(git push --force*)",
      "PowerShell(git push -f*)",
      "PowerShell(git tag v*)",
      "PowerShell(git tag -a*)",
      "PowerShell(git tag -f*)",
      "PowerShell(git tag -d*)",
      "PowerShell(gh release create*)",
      "PowerShell(gh release edit*)",
      "PowerShell(gh release delete*)",
      "PowerShell(gh release upload*)",
      "PowerShell(gh workflow run*)",
      "PowerShell(gh pr merge*)",
      "PowerShell(gh issue delete*)",
      "PowerShell(gh repo delete*)",
      "PowerShell(*twine upload*)",
      "PowerShell(*mcp-publisher* publish*)",
      "PowerShell(*mcp-publisher* login*)"
    ]
  },
  "hooks": {
    "PreToolUse": [
      {
        "matcher": "Bash|PowerShell",
        "hooks": [
          {
            "type": "command",
            "command": "python \"$CLAUDE_PROJECT_DIR/.claude/hooks/deny_guard.py\""
          },
          {
            "type": "command",
            "command": "python \"$CLAUDE_PROJECT_DIR/.claude/hooks/pre_commit.py\""
          },
          {
            "type": "command",
            "command": "python \"$CLAUDE_PROJECT_DIR/.claude/hooks/pre_pr.py\""
          }
        ]
      }
    ]
  }
}

Skills (10)

benchmark-methodology changelog-format claude-md-budget mechanism-not-instance observatory pr-description release standard-axes tool-surface-discipline version-scheme

Subagents (2)

reviewer	Grades a diff against the Definition of Done in docs/standard/STANDARD.md with no memory of the implementer's reasoning. Receives the diff (deletions first), the spec or issue, the harness summaries,
spokesperson	>

Hooks (5)

event	matcher	runs
PreToolUse	Bash\|PowerShell	python "$CLAUDE_PROJECT_DIR/.claude/hooks/deny_guard.py"
PreToolUse	Bash\|PowerShell	python "$CLAUDE_PROJECT_DIR/.claude/hooks/pre_commit.py"
PreToolUse	Bash\|PowerShell	python "$CLAUDE_PROJECT_DIR/.claude/hooks/pre_pr.py"
PostToolUse	Edit\|Write	python "$CLAUDE_PROJECT_DIR/.claude/hooks/test_edit_guard.py"
PostToolUse	Edit\|Write	python "$CLAUDE_PROJECT_DIR/.claude/hooks/surface_guard.py"

Slash commands (7)

/benchmark-compare/competitive-compare/feature/fix-issue/release/review/triage-issue

Permissions

deny (44)

Bash(git push --force*)

Bash(git push -f*)

Bash(git push * --force*)

Bash(git push * -f *)

Bash(git push --force-with-lease*)

Bash(git tag v*)

Bash(git tag -a*)

Bash(git tag -s*)

Bash(git tag -f*)

Bash(git tag -d*)

Bash(git tag --force*)

Bash(git tag --delete*)

Bash(git tag --annotate*)

Bash(git push --tags*)

Bash(git push origin v*)

Bash(gh release create*)

Bash(gh release edit*)

Bash(gh release delete*)

Bash(gh release upload*)

Bash(gh workflow run*)

Bash(gh pr merge*)

Bash(gh issue delete*)

Bash(gh repo delete*)

Bash(twine upload*)

Bash(*twine upload*)

Bash(*mcp-publisher* publish*)

Bash(*mcp-publisher* login*)

PowerShell(git push --force*)

PowerShell(git push -f*)

PowerShell(git tag v*)

PowerShell(git tag -a*)

PowerShell(git tag -f*)

PowerShell(git tag -d*)

PowerShell(gh release create*)

PowerShell(gh release edit*)

PowerShell(gh release delete*)

PowerShell(gh release upload*)

PowerShell(gh workflow run*)

PowerShell(gh pr merge*)

PowerShell(gh issue delete*)

PowerShell(gh repo delete*)

PowerShell(*twine upload*)

PowerShell(*mcp-publisher* publish*)

PowerShell(*mcp-publisher* login*)

ask (0)

—

allow (21)

Bash(uv run python -m harness*)

Bash(uv run pytest*)

Bash(uv run ruff*)

Bash(python scripts/*)

Bash(python .claude/hooks/*)

Bash(git worktree*)

Bash(git diff*)

Bash(git log*)

Bash(git status*)

Bash(git rev-parse*)

Bash(GITHUB_TOKEN="" gh pr create*)

Bash(GITHUB_TOKEN="" gh pr diff*)

Bash(GITHUB_TOKEN="" gh pr view*)

Bash(GITHUB_TOKEN="" gh pr list*)

Bash(GITHUB_TOKEN="" gh pr checks*)

Bash(GITHUB_TOKEN="" gh issue view*)

Bash(GITHUB_TOKEN="" gh issue list*)

Bash(GITHUB_TOKEN="" gh label list*)

Bash(GITHUB_TOKEN="" gh run list*)

Bash(GITHUB_TOKEN="" gh run view*)

Bash(GITHUB_TOKEN="" gh run download*)

Context tax

Instructions: 34.9kMCP tool schemas (est.): 0Skill metadata: 563Subagent metadata: 96

ALWAYS-LOADED FILES (claude-code)

≡

CLAUDE.md · 1073 lines · ~34.9k tok

≡

AGENTS.md · 82 lines · ~1.4k tok

Estimate: characters ÷ 4 for instruction files and skill/subagent descriptions; MCP schema sizes from typical tool counts. Harnesses with deferred tool loading pay less. Method

Guardrails 3/5

✓

Blocks destructive commands

9 deny/ask rule(s) e.g. Bash(git push --force*)

✗

Protects secrets

No deny rule for .env / keys / ~/.ssh

✓

Pre-tool screening hook

3 PreToolUse hook(s)

✓

No YOLO mode

Permission prompts stay on

✗

Sandbox or ask-first rules

No sandbox and no ask-first rules

Badge

Add to your README:

[![AgentRigs](https://agentrigs.dev/badge/rig/jgravelle/jcodemunch-mcp.svg)](https://agentrigs.dev/r/jgravelle/jcodemunch-mcp)

Indexed from commit 51733f05a2c6 on 2026-10-09. Data is structure only — env values and anything secret-looking are stripped.

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