scrutinize-dont-coast

scrutinize-dont-coast is a skill for Claude Code, Codex from melodic-software/claude-code-plugins. It costs 120 tokens per session (2,042 once invoked), scanned A, original, MIT.

A fresh-context review that examines recent work for mistakes without relying on the reasoning that produced it.

In plain words
What is it for?
Use it to challenge a solution, inspect recent output, and correct issues before presenting the work.
Why use it?
Confident or fluent output can still be wrong. A separate review makes it easier to find unsupported assumptions and overlooked problems.

Skill for Claude CodeCodex

Installs and runs on its own, but its text points at files inside its plugin — anything it tells you to read at a ${CLAUDE_PLUGIN_ROOT} path is only there once the plugin is installed. Installing the plugin gets both.

Part of the discipline plugin — 16 skills shipped together

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 skills/melodic-software/claude-code-plugins/scrutinize-dont-coast
Any agent
npx skills add melodic-software/claude-code-plugins --skill scrutinize-dont-coast
Clone the repo
git clone --depth 1 https://github.com/melodic-software/claude-code-plugins

Made for: Claude Code, Codex.

Or install discipline, the plugin that ships this one along with the rest of its 16 skills.

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 scrutinize-dont-coast

README.md
[![agentmods](https://agentmods.dev/badge/skills/melodic-software/claude-code-plugins/scrutinize-dont-coast.svg)](https://agentmods.dev/skills/melodic-software/claude-code-plugins/scrutinize-dont-coast)
Your own site
<a href="https://agentmods.dev/skills/melodic-software/claude-code-plugins/scrutinize-dont-coast"><img src="https://agentmods.dev/badge/skills/melodic-software/claude-code-plugins/scrutinize-dont-coast.svg" alt="Measured on agentmods" height="20"></a>
Per session 120 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,042 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 $0.00120 $0.02042
Opus 5 $0.00060 $0.01021
Sonnet 5 $0.00024 $0.00408
Haiku 4.5 $0.00012 $0.00204

Measured yesterday against content hash 5a8ed1b57852, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

scrutinize-dont-coast 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.

plugins/discipline/skills/scrutinize-dont-coast/SKILL.md · 144 lines

How it starts

The opening of the file, as written. The whole thing — 144 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Scrutinize, don't coast

A drift corrector for adversarial self-scrutiny. The shared method. Re-anchor, audit the work in flight, correct forward, report, and the tone that firing this is not an accusation, lives in ${CLAUDE_PLUGIN_ROOT}/context/re-anchor-audit-correct.md. Read it; this file adds only what is specific to adversarial self-scrutiny. And two deliberate deltas this corrector makes to the shared loop.

The discipline this re-anchors

Every other corrector in this plugin re-anchors a content discipline. Research, incumbency, terseness. This one re-anchors a meta discipline: adversarial self-scrutiny of your own recent output. Confidence that the output is sound is not evidence that it is; fluent, momentum-carried work reads as finished long before it has been tested. The lens is not "does this conform to discipline X" but "is this actually right, and would it survive a hostile second look."

Resolve the source of truth per the method doc's ladder: if the consuming project states a self-scrutiny / verify-before-acting discipline in its own CLAUDE.md or .claude/rules/, re-anchor THAT. Otherwise re-anchor this portable baseline:

  • Confidence is not correctness. Output that flows smoothly and reads as finished has not thereby been tested. Treat "this looks done" as the cue to scrutinize, not the verdict.
  • Attack the work, don't defend it. The pass looks actively for what is wrong: a wrong assumption, an unstated leap, a case not handled, a claim not backed, a requirement quietly dropped. Rather than re-reading for reassurance.
  • The producing context is the weakest critic. The reasoning that made a mistake plausible is still active, so a hostile look must come from outside it (see the fresh-context rule below).
  • A clean pass is a real outcome. Scrutiny that finds the work sound reports clean. The duty is to look hard, not to manufacture a fault.

Three deltas to the shared loop

Read the full file on GitHub · 144 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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 · 144 lines · 120 tokens per session scan A 5a8ed1b57852

Subscribe to this mod's changes

scrutinize-dont-coast is a skill published in the GitHub repository melodic-software/claude-code-plugins (15 stars, last pushed today), licensed MIT. It adds 120 tokens to every session and 2,042 once invoked, about $0.0006 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 2026-09-03.

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