blackfish: Command for Claude Code

.claude/commands/pr-review.md

pr-review is a command for Claude Code from princeton-ddss/blackfish. It costs 0 tokens per session (160 once invoked), scanned A, original, MIT.

A command for reviewing changes on the current Git branch and drafting pull-request text. A pull request is a proposed set of changes for others to review before merging.

In plain words
What is it for?
Use it to inspect branch differences, identify affected files and project areas, and suggest a title, summary, and verification steps.
Why use it?
It turns a branch's changes into a clear summary and test plan, reducing the work needed to prepare a pull request.

Command for Claude Code

Written for Claude Code: installed under .claude/.

This is princeton-ddss/blackfish's own configuration. It tells Claude Code how to work on blackfish itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything blackfish configures →

Reuse

Borrowing it

Nothing to install: this file belongs to princeton-ddss/blackfish. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/princeton-ddss/blackfish/main/.claude/commands/pr-review.md
Clone the repo
git clone --depth 1 https://github.com/princeton-ddss/blackfish

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for pr-review

README.md
[![agentmods](https://agentmods.dev/badge/commands/princeton-ddss/blackfish/pr-review/github.svg)](https://agentmods.dev/commands/princeton-ddss/blackfish/pr-review)
Your own site
<a href="https://agentmods.dev/commands/princeton-ddss/blackfish/pr-review"><img src="https://agentmods.dev/badge/commands/princeton-ddss/blackfish/pr-review/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for pr-review

Your own site · 80×15
<a href="https://agentmods.dev/commands/princeton-ddss/blackfish/pr-review"><img src="https://agentmods.dev/badge/commands/princeton-ddss/blackfish/pr-review.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 160 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00000 $0.00160
Opus 5 $0.00000 $0.00080
Sonnet 5 $0.00000 $0.00032
Haiku 4.5 $0.00000 $0.00016

Measured 7d ago against content hash 86b1ef7fee7c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

pr-review scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 7d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude/commands/pr-review.md · 21 lines

What it actually says

Review the current branch changes and suggest PR content.

  1. Get the current branch and base branch:
git branch --show-current
git log --oneline main..HEAD
git diff main...HEAD --stat
  1. Analyze the changes:
  • Summarize what changed (new features, bug fixes, refactoring, etc.)
  • Identify which parts of the monorepo are affected (lib/, web/, or both)
  • List the key files modified
  1. Generate a PR description with:
  • Title: Concise summary of the changes
  • Summary: 2-3 bullet points explaining the changes
  • Test plan: How to verify the changes work correctly

Present the suggested PR content for the user to review and modify.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 7d ago First seen · 21 lines · 0 tokens per session scan A 86b1ef7fee7c

Subscribe to this mod's changes

pr-review is a command published in the GitHub repository princeton-ddss/blackfish (24 stars, last pushed 11d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 160 tokens. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-01.