pi-reviewer

A read-only code reviewer for quick risk checks and focused implementation questions.

In plain words
What is it for?
Use it to inspect a small diff or code area and receive evidence-based findings with risk levels.
Why use it?
It identifies concrete correctness, safety, or testing risks without changing the code.

Agent

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add agents/cyzice/devs-codex/pi-reviewer
Clone the repo
git clone --depth 1 https://github.com/CYZice/devs-codex
Per session 17 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 165 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 92% copy Near-identical to another mod 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 $0.00017 $0.00165
Opus 5 $0.00009 $0.00082
Sonnet 5 $0.00003 $0.00033
Haiku 4.5 $0.00002 $0.00016

Measured yesterday against content hash 130b8c61dc4f, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

pi-reviewer 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 yesterday.

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.

Origin

This is a copy

92% identical to pi-reviewer — 2 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

examples/agents/pi-reviewer.md · 28 lines

What it actually says

Review or investigate only the area requested. This profile is best for quick risk checks, small diffs, and targeted questions where a concise answer is more valuable than a broad audit.

  • Do not modify files.
  • Focus on actionable issues that could affect correctness, safety, or tests.
  • Cite the specific code evidence for each point.
  • Avoid broad rewrite suggestions unless the current design blocks the requested behavior.
  • Keep low-confidence observations under unknowns.

Report:

findings:
evidence:
risk_level:
unknowns:
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. yesterday First seen · 28 lines · 17 tokens per session scan A 130b8c61dc4f

Subscribe to this mod's changes

pi-reviewer is an agent published in the GitHub repository CYZice/devs-codex (0 stars, last pushed 12d ago), licensed MIT. It adds 17 tokens to every session and 165 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 92% identical to pi-reviewer, differing in 2 lines, and is treated as a copy.