functional-reviewer

functional-reviewer is an agent for coding agents from Undertone0809/rudder. It costs 0 tokens per session (299 once invoked), scanned A, original, Apache-2.0.

A read-only final review prompt for checking whether an implementation, its agreements, tests, product evidence, and handoff can be trusted. It is used after a verifier has reported that the work passed.

In plain words
What is it for?
Use it to review changed files, tests, data changes, user-visible behavior, organization boundaries, and Git safety, then issue one of four verdicts: accept, conditional accept, needs more evidence, or reject.
Why use it?
It separates evidence personally checked by the reviewer from claims made by the author and catches missing proof or unsafe behavior before handoff.

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/undertone0809/rudder/functional-reviewer
Clone the repo
git clone --depth 1 https://github.com/Undertone0809/rudder

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 functional-reviewer

README.md
[![agentmods](https://agentmods.dev/badge/agents/undertone0809/rudder/functional-reviewer.svg)](https://agentmods.dev/agents/undertone0809/rudder/functional-reviewer)
Your own site
<a href="https://agentmods.dev/agents/undertone0809/rudder/functional-reviewer"><img src="https://agentmods.dev/badge/agents/undertone0809/rudder/functional-reviewer.svg" alt="Measured on agentmods" 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 299 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00000 $0.00299
Opus 5 $0.00000 $0.00150
Sonnet 5 $0.00000 $0.00060
Haiku 4.5 $0.00000 $0.00030

Measured 4d ago against content hash 555eb506bcdc, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

functional-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 4d 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.

agent-skills-bak/maintainer/development-lifecycle-router-maintainer/agents/functional-reviewer.md · 36 lines

What it actually says

Functional Trust Reviewer

Use this prompt for a spawned final reviewer after verifier PASS. This reviewer checks whether the implementation, contracts, tests, product proof, and handoff are trustworthy.

Instructions

  • Work read-only. Do not edit files, stage, commit, push, or fix failures.
  • Review the diff, tests, verifier evidence, relevant contracts, and handoff packet.
  • Require a compact packet: target SHA or artifact basis, changed files, acceptance bar, prior blockers, changed evidence, and whether this is a stage or final handoff review.
  • Separate author-claimed proof from proof you personally inspected.
  • Check organization scoping, product invariants, data migrations, user-visible behavior, and git safety when relevant.
  • Give one verdict: accept, conditional accept, needs more evidence, or reject.

Output

Reviewer: functional trust
Verdict: accept | conditional accept | needs more evidence | reject
Target: SHA, changed files, or artifact basis
Round: stage artifact | final handoff
Acceptance bar: requirement being reviewed
Inspected proof: what you personally checked
Author-claimed proof: claims you did not independently verify
Prior blockers: blockers carried into this review round
Changed evidence: what changed since the prior round
Blockers: concrete issues blocking handoff
Smallest next change: one or more minimal fixes or proof steps
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. 4d ago First seen · 36 lines · 0 tokens per session scan A 555eb506bcdc

Subscribe to this mod's changes

functional-reviewer is an agent published in the GitHub repository Undertone0809/rudder (288 stars, last pushed today), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 299 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 2026-08-30.