Knowledge Graph PR Review

What it does

When your agent uses it

• Reviewing a pull request with a view of what else it affects
• Checking a branch for untested risky changes before merge
• Finding the callers of a changed public function

Example prompts

• “Review the feature/payments branch against main and show the blast radius.”
• “Which changed functions in this PR have no tests?”
• “Check whether the callers of the renamed public API were updated in this branch.”

Requirements

• The code-review-graph tools available to your agent
• Git

Workflow steps

6 steps, taken from the first numbered list in SKILL.md.

1. 1Identify the changes. With a branch name run git diff --name-only main...; otherwise diff the current branch against main (or master). Use…
2. 2Call get_minimal_context_tool(task="review PR", base="main"). If it returns status: not_ready, call build_or_update_graph_tool() and…
3. 3Call detect_changes_tool(base="main", detail_level="minimal") for risk-scored changed functions, test gaps and affected flows across the…
4. 4For high-risk functions call query_graph_tool(pattern="callers_of", target="") and query_graph_tool(pattern="tests_for", target=""). Flag…
5. 5Call get_review_context_tool(base="main") for source snippets, or get_impact_radius_tool(base="main") for the full dependent list, only…
6. 6Read the changed source of the highest-impact files first. Do not load whole files unless the change needs it.

What it can do on your machine

Read from SKILL.md and the folder at commit 6b12d11. 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:

  • git

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  No URLs in SKILL.md. Its commands use 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

Knowledge Graph PR Review loads about 452 tokens when it runs. Until then it costs about 37 tokens; SKILL.md has 149 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~37

When it runs · the whole SKILL.md, loaded when a task matches

~452

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

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

The full file from tirth8205/code-review-graph at commit 6b12d11, republished under its MIT licence (© tirth8205). 149 words, ~452 tokens.

name

review-pr

description

Review a PR or branch diff using the knowledge graph for full structural context. Outputs a structured review with blast-radius analysis.

argument-hint

[PR number or branch name]

## PR Review: <title>

### Summary
<1-3 sentences>

### Risk
- Overall: Low / Medium / High
- Blast radius: <n> files, <m> functions
- Test coverage: <covered> of <changed> changed functions

### Files
#### <path>
- Changes: <what>
- Impact: <who depends on it>
- Issues: <bugs, style, concerns>

### Missing Tests
- <function> in <file>

### Recommendations
1. <action>

© tirth8205, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in skills/review-pr of tirth8205/code-review-graph.

Open the folder on GitHubat commit 6b12d11