Roam
Cranot/roam-code
Codebase comprehension via roam-code CLI. An agent skill from Cranot/roam-code.
Queries a pre-built, Tree-sitter-based code graph of the whole monorepo instead of grepping call chains, for exploring, debugging, refactoring or reviewing code.
Install Code Review Graph Navigator
$ npx skills add handsontable/handsontable --skill code-graph -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install handsontable/handsontable code-graph --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/handsontable/handsontable.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/code-graph .claude/skills/code-graph && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "code-graph" agent skill from https://github.com/handsontable/handsontable/tree/develop/.claude/skills/code-graph into .claude/skills/code-graph/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "code-graph", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/handsontable/handsontable/tree/develop/.claude/skills/code-graphType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add handsontable/handsontable --skill code-graph -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install handsontable/handsontable code-graph --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/handsontable/handsontable.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.claude/skills/code-graph .agents/skills/code-graph && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "code-graph" agent skill from https://github.com/handsontable/handsontable/tree/develop/.claude/skills/code-graph into .agents/skills/code-graph/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "code-graph", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add handsontable/handsontable --skill code-graph -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install handsontable/handsontable code-graph --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/handsontable/handsontable.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.claude/skills/code-graph .cursor/skills/code-graph && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "code-graph" agent skill from https://github.com/handsontable/handsontable/tree/develop/.claude/skills/code-graph into .cursor/skills/code-graph/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "code-graph", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/handsontable/handsontable.git --path .claude/skills/code-graph--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add handsontable/handsontable --skill code-graph -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install handsontable/handsontable code-graph --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/handsontable/handsontable.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.claude/skills/code-graph .gemini/skills/code-graph && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "code-graph" agent skill from https://github.com/handsontable/handsontable/tree/develop/.claude/skills/code-graph into .gemini/skills/code-graph/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "code-graph", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install handsontable/handsontable code-graphInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add handsontable/handsontable --skill code-graph -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/handsontable/handsontable.git skills-src && mkdir -p .github/skills && cp -r skills-src/.claude/skills/code-graph .github/skills/code-graph && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "code-graph" agent skill from https://github.com/handsontable/handsontable/tree/develop/.claude/skills/code-graph into .github/skills/code-graph/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "code-graph", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add handsontable/handsontable --skill code-graph -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install handsontable/handsontable code-graph --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/handsontable/handsontable.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.claude/skills/code-graph .opencode/skills/code-graph && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "code-graph" agent skill from https://github.com/handsontable/handsontable/tree/develop/.claude/skills/code-graph into .opencode/skills/code-graph/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "code-graph", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
code-graph- GitHub stars
- 22k
- Token cost
- ~939 tokens
- SKILL.md length
- 313 words
- Files
- 1
- Skills in repo
- 31
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Queries a pre-built, Tree-sitter-based code graph of the whole monorepo instead of grepping call chains, for exploring, debugging, refactoring or reviewing code.
- Works in 4 steps: list_graph_stats, then list_communities… → semantic_search_nodes finds a function… → query_graph with callers_of / callees_of… → …
- Tracing every caller of a function before changing its signature
- SKILL.md covers Bootstrap once per session, Keep the graph current, Modes and Cross-cutting rules
- Calls pipx and git
What it does
This skill replaces walking call chains with grep and read by querying a pre-built code-review-graph over the whole monorepo through MCP tools, which it describes as 2-6x cheaper and able to catch dynamic dispatch that grep misses. It shares one setup and tool set across four modes - explore, debug, refactor and review - and loads the graph's MCP tool schemas with one ToolSearch call before first use, since the tools are deferred.
It keeps the graph synced automatically after edits through a PostToolUse hook, but requires a manual rebuild after a branch switch, pull, or large merge, since a graph built on another branch reports function names from unrelated files. In explore mode it moves from community and symbol search to callers_of, callees_of and importers_of queries and execution-path flows; in debug mode it searches for code near a symptom, traces callers and callees, and checks recent changes as the most common cause; in refactor mode it checks impact radius before touching code and previews a rename or dead-code removal before applying it; and in review mode it scores changes by risk and checks test coverage.
It flags that the refactor tool, apply-refactor tool, and a large-function finder are not validated on this particular codebase, so their output should be treated as a hypothesis to verify against the actual code rather than applied blindly.
When your agent uses it
- Tracing every caller of a function before changing its signature
- Finding the root cause of a bug across several files
- Checking the blast radius of a rename before applying it
Example prompts
- “Who calls this function, and would renaming it break anything?”
- “Trace why this error happens across the affected modules.”
- “Review this PR's diff and flag any untested changes.”
Requirements
- The code-review-graph MCP server and a built graph
Workflow steps
4 steps, taken from the first numbered list in SKILL.md.
- list_graph_stats, then list_communities and get_community.
- semantic_search_nodes finds a function or class by name (keyword match).
- query_graph with callers_of / callees_of / importers_of / children_of.
- list_flows and get_flow for execution paths.
What it can do on your machine
Read from SKILL.md and the folder at commit 68b5e97. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
pipxgit
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use pipx and git, which can reach the network depending on how they are called.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Code Review Graph Navigator loads about 939 tokens when it runs. Until then it costs about 198 tokens; SKILL.md has 313 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 313 words (~939 tokens).
“Four modes (explore, debug, refactor, review) share the same setup and tools. Full setup, version pin, rebuild, troubleshooting: .ai/MCP.md ("code-review-graph MCP").”
- name
- code-graph
Files
Just SKILL.md in .claude/skills/code-graph of handsontable/handsontable.
Open the folder on GitHubat commit 68b5e97
Compare with similar skills
Code Review Graph Navigator next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Code Review Graph Navigator this skillhandsontable/handsontable | 22k | — | ~939 | Automated safety check: Pass | Custom licence | |
| RoamCranot/roam-code | 517 | — | ~2.4k | Automated safety check: Pass | Apache-2.0 | |
| Batchys2-streamstore/claude-batch-toolkit | 160 | — | ~1.9k | Automated safety check: Pass | None | |
| Synapse UsageS1LV4/th0th | 136 | — | ~2.9k | Automated safety check: Pass | MIT | |
| Copilot Code Coachtimothywarner/chatgptclass | 143 | — | ~1.9k | Automated safety check: Pass | Custom licence | |
| Vscode MCP Architecturetjx666/vscode-mcp | 106 | — | ~1.5k | Automated safety check: Pass | Custom licence |
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Works with
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Questions about Code Review Graph Navigator
What does Code Review Graph Navigator do?
Queries a pre-built, Tree-sitter-based code graph of the whole monorepo instead of grepping call chains, for exploring, debugging, refactoring or reviewing code. This skill replaces walking call chains with grep and read by querying a pre-built code-review-graph over the whole monorepo through MCP tools, which it describes as 2-6x cheaper and able to catch dynamic dispatch that grep misses. It shares one setup and tool set across four modes - explore, debug, refactor and review - and loads the graph's MCP tool schemas with one ToolSearch call before first use, since the tools are deferred.
When should I use Code Review Graph Navigator?
Code Review Graph Navigator fits situations like: tracing every caller of a function before changing its signature; finding the root cause of a bug across several files; checking the blast radius of a rename before applying it.
How do I install Code Review Graph Navigator in Claude Code?
Run `npx skills add handsontable/handsontable --skill code-graph -a claude-code`. Or copy the skill folder (.claude/skills/code-graph in handsontable/handsontable) into .claude/skills/code-graph in your project. Claude Code loads it when a task matches its description.
How do I install Code Review Graph Navigator in Codex?
Run `npx skills add handsontable/handsontable --skill code-graph -a codex`. Or copy the skill folder (.claude/skills/code-graph in handsontable/handsontable) into .agents/skills/code-graph in your project. Codex loads it when a task matches its description.
Can I use Code Review Graph Navigator in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add handsontable/handsontable --skill code-graph -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/code-graph, .gemini/skills/code-graph, .github/skills/code-graph and .opencode/skills/code-graph in your project.
What does Code Review Graph Navigator need to run?
Going by SKILL.md and its folder, Code Review Graph Navigator needs the command-line tools its instructions call (pipx and git). Our summary lists: The code-review-graph MCP server and a built graph.
Does Code Review Graph Navigator access the network?
SKILL.md contains no URLs. Its commands use git, which can reach the network depending on how they are called. This is read from the text; nothing was executed.
Is Code Review Graph Navigator safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Code Review Graph Navigator use?
Code Review Graph Navigator has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.
How many tokens does Code Review Graph Navigator use?
About 939 tokens (SKILL.md is roughly 3.8k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Code Review Graph Navigator?
Skills that share tags, products or a category with Code Review Graph Navigator: Roam (Cranot/roam-code, 517 stars), Batchy (s2-streamstore/claude-batch-toolkit, 160 stars), Synapse Usage (S1LV4/th0th, 136 stars) and Copilot Code Coach (timothywarner/chatgptclass, 143 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Code Review Graph Navigator?
handsontable (a GitHub organization) maintains it in handsontable/handsontable, which has 22,059 GitHub stars. The repository holds 31 skills in this directory. The repository was last updated on October 7, 2026.
Source: handsontable/handsontable on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.