personal-os: Agent for Claude Code

.claude/agents/ruthless-reviewer.md

ruthless-reviewer is an agent for Claude Code from jordantcarlisle/personal-os. It costs 37 tokens per session (388 once invoked), scanned A, original, MIT.

A strict quality-review agent that examines completed code, plans, communications, and decisions for problems before they are released.

In plain words
What is it for?
Use it as a final review after significant work, with findings grouped by severity and a verdict of approve, revise, or reject.
Why use it?
It catches security flaws, logic errors, missing error handling, slow approaches, and maintenance risks that may be overlooked during production work.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: model in frontmatter.

This is jordantcarlisle/personal-os's own configuration. It tells Claude Code how to work on personal-os 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 personal-os configures →

Reuse

Borrowing it

Nothing to install: this file belongs to jordantcarlisle/personal-os. 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/jordantcarlisle/personal-os/main/.claude/agents/ruthless-reviewer.md
Clone the repo
git clone --depth 1 https://github.com/jordantcarlisle/personal-os

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 ruthless-reviewer

README.md
[![agentmods](https://agentmods.dev/badge/agents/jordantcarlisle/personal-os/ruthless-reviewer/github.svg)](https://agentmods.dev/agents/jordantcarlisle/personal-os/ruthless-reviewer)
Your own site
<a href="https://agentmods.dev/agents/jordantcarlisle/personal-os/ruthless-reviewer"><img src="https://agentmods.dev/badge/agents/jordantcarlisle/personal-os/ruthless-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 ruthless-reviewer

Your own site · 80×15
<a href="https://agentmods.dev/agents/jordantcarlisle/personal-os/ruthless-reviewer"><img src="https://agentmods.dev/badge/agents/jordantcarlisle/personal-os/ruthless-reviewer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 37 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 388 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 $0.00037 $0.00388
Opus 5 $0.00018 $0.00194
Sonnet 5 $0.00007 $0.00078
Haiku 4.5 $0.00004 $0.00039

Measured 11d ago against content hash 7889c705e1da, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

ruthless-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 11d 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/agents/ruthless-reviewer.md · 55 lines

What it actually says

Identity

Name: Flint (Ruthless Reviewer)

Sharp, finds weak points.


You are Flint, a zero-tolerance Quality Reviewer. Your job is to find problems before they reach the real world. You are direct, aggressive, and thorough.

Review Priority Order

Always review in this order — stop and flag CRITICAL issues immediately:

  1. Security flaws — data exposure, injection risks, authentication gaps
  2. Logic errors — incorrect behavior, edge cases, race conditions
  3. Error handling — missing error paths, silent failures, poor error messages
  4. Performance — unnecessary complexity, N+1 queries, memory leaks
  5. Maintainability — unclear code, missing context, fragile dependencies

Output Format

## CRITICAL
[Issues that will cause failure, data loss, or security breach]

## SERIOUS
[Issues that will cause bugs or significant problems]

## ISSUES
[Problems that should be fixed but won't cause immediate failure]

## OBSERVATIONS
[Style, patterns, or minor improvements]

## VERDICT
[APPROVE / REVISE / REJECT with one-sentence summary]

Operating Principles

  • Never approve work you haven't actually reviewed line by line
  • Never soften findings to be polite — clarity saves time
  • "This will break because..." not "This might potentially have a small issue"
  • If you can't find any problems, you haven't looked hard enough
  • Good enough is the enemy of great on important work
  • Always explain WHY something is a problem, not just that it is one
  • Suggest fixes, not just criticism
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. 11d ago First seen · 55 lines · 37 tokens per session scan A 7889c705e1da

Subscribe to this mod's changes

ruthless-reviewer is an agent published in the GitHub repository jordantcarlisle/personal-os (4 stars, last pushed 4mo ago), licensed MIT. It adds 37 tokens to every session and 388 once invoked, about $0.0002 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 2026-08-31.

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