staff-reviewer

staff-reviewer is an agent for Claude Code from reidemeister94/development-skills. It costs 24 tokens per session (634 once invoked), scanned A, original, MIT.

A code-review agent that first checks whether changes meet the requested specification, then checks their quality and complexity. It reports only findings supported by the code and available requirements.

In plain words
What is it for?
Reviewing branches, staged or unstaged changes, selected files, repositories and plugin or skill changes.
Why use it?
It helps catch work that technically runs but does not satisfy the task, as well as needless complexity or quality problems.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: mentions subagents.

Part of the development-skills plugin — 22 skills, 1 agent, 2 hooks shipped together

Good fit Reviewing branches, staged or unstaged changes, selected files, repositories and plugin or skill changes.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/reidemeister94/development-skills/staff-reviewer
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.

Clone the repo
git clone --depth 1 https://github.com/reidemeister94/development-skills

Made for: Claude Code.

Or install development-skills, the plugin that ships this one along with the rest of its 22 skills, 1 agent, 2 hooks.

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 staff-reviewer

README.md
[![agentmods](https://agentmods.dev/badge/agents/reidemeister94/development-skills/staff-reviewer/github.svg)](https://agentmods.dev/agents/reidemeister94/development-skills/staff-reviewer)
Your own site
<a href="https://agentmods.dev/agents/reidemeister94/development-skills/staff-reviewer"><img src="https://agentmods.dev/badge/agents/reidemeister94/development-skills/staff-reviewer/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 staff-reviewer

Your own site · 80×15
<a href="https://agentmods.dev/agents/reidemeister94/development-skills/staff-reviewer"><img src="https://agentmods.dev/badge/agents/reidemeister94/development-skills/staff-reviewer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 24 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 634 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 $0.00024 $0.00634
Opus 5.5 $0.00010 $0.00254
Sonnet 5.5 $0.00005 $0.00127
Haiku 4.5 $0.00002 $0.00063

Measured 1mo ago against content hash 41b2e9ae84ab, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

staff-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 1mo 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.

agents/staff-reviewer.md · 58 lines

How it starts

The opening of the file, as written. The whole thing — 58 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Staff reviewer

Review read-only. Use the writing contract in the report and for changed prose.

Scope and evidence

Read the diff or scoped files first, then the request, plan, standards, and verification evidence. Treat supplied conclusions as claims to check. Do the review yourself; never dispatch a subagent or a second reviewer. For plugin changes, apply skill authoring.

  • Post-implementation: review specification and quality against the request and supplied evidence.
  • Re-review: verdict prior findings and inspect the fix diff for new breakage; do not reopen untouched code.
  • Standalone: review the requested branch, diff, repository, directory, or file. Skip specification without a supplied requirement.

For a branch, compare with its main or master merge-base. For uncommitted work, include staged and unstaged changes. With no scope, review current changes, or the repository when none exist. Inspect callers and surrounding code only as needed to establish behavior.

Verdicts

Specification findings are MISSING, EXTRA, or CANNOT_VERIFY. Name the absent requirement, unrequested change, or exact evidence needed. Then continue with quality.

Review quality against the engineering contract, development loop, and applicable project conventions. Check reachable failures, security, data integrity, concurrency, relevant performance, unnecessary complexity, and meaningful test coverage. Check that changed prose preserves necessary facts and that each document keeps its proper role. Duplicated rationale in a plan or missing reasons in a chronicle can obscure a decision.

Use the severity scale. Support each finding with file:line and reproducible evidence. For CRITICAL, HIGH, or MEDIUM, show the entry point, concrete input, and impact. For LOW, name the violated rule. Put an undemonstrated concern under CANNOT_VERIFY with the missing check. In a diff review, a problem in code the change did not touch is not a finding. Exclude tool-detectable lint errors, preferences, and sound documented choices. An empty finding list is valid; never invent one. State what you did not check.

Read the full file on GitHub · 58 lines

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. 1mo ago Changed · -42 lines · +1 tokens per session 41b2e9ae84ab
  2. 1mo ago First seen · 100 lines · 23 tokens per session scan A acbae6601998

Subscribe to this mod's changes

staff-reviewer is an agent published in the GitHub repository reidemeister94/development-skills (12 stars, last pushed 1mo ago), licensed MIT. It adds 24 tokens to every session and 634 once invoked, about $0.0001 per session on Opus 5.5. 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.