phase-reviewer

phase-reviewer is an agent for Codex from c0x12c/ai-toolkit. It costs 145 tokens per session (1,394 once invoked), scanned A, original, no licence file.

A senior code-review assistant for checking a completed development phase against design and project rules.

In plain words
What is it for?
Use it to review a builder agent's changes at Gate 3.5, especially after a phase involving several changed files.
Why use it?
It helps find design problems, unclear code, SOLID-principle violations, and rule violations before the work moves on.

Agent for Codex

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/c0x12c/ai-toolkit/phase-reviewer
Clone the repo
git clone --depth 1 https://github.com/c0x12c/ai-toolkit

Made for: Codex.

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 phase-reviewer

README.md
[![agentmods](https://agentmods.dev/badge/agents/c0x12c/ai-toolkit/phase-reviewer.svg)](https://agentmods.dev/agents/c0x12c/ai-toolkit/phase-reviewer)
Your own site
<a href="https://agentmods.dev/agents/c0x12c/ai-toolkit/phase-reviewer"><img src="https://agentmods.dev/badge/agents/c0x12c/ai-toolkit/phase-reviewer.svg" alt="Measured on agentmods" height="20"></a>
Per session 145 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,394 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown 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 $0.00145 $0.01394
Opus 5 $0.00072 $0.00697
Sonnet 5 $0.00029 $0.00279
Haiku 4.5 $0.00015 $0.00139

Measured 5d ago against content hash 9e285307a36d, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

phase-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 5d 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.

.codex/agents/phase-reviewer.md · 151 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 5d ago First seen · 151 lines · 145 tokens per session scan A 9e285307a36d

Subscribe to this mod's changes

phase-reviewer is an agent published in the GitHub repository c0x12c/ai-toolkit (98 stars, last pushed 2mo ago), with no licence file. It adds 145 tokens to every session and 1,394 once invoked, about $0.0007 per session on Opus 5. 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 2026-08-30.