systems-review

systems-review is a skill for Claude Code from fivol/claude-make-better. It costs 79 tokens per session (7,943 once invoked), scanned A, original, MIT.

A recurring audit workflow for codebase subsystems listed in a systems document, checking selected areas for problems, missing work, design issues, tests, documentation, and security.

In plain words
What is it for?
Use it to choose subsystems, create a review plan, inspect specific topics, apply fixes in separate worktrees, and update the review record.
Why use it?
It turns broad maintenance into a focused review of selected systems and records when each system was last checked.

Skill for Claude Code

Written for Claude Code: disable-model-invocation in frontmatter. Also seen: model in frontmatter; mentions CLAUDE.md; mentions subagents.

Part of the make-better plugin — 4 skills shipped together

Good fit Use it to choose subsystems, create a review plan, inspect specific topics, apply fixes in separate worktrees, and update the review record.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/fivol/claude-make-better/systems-review
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.

Any agent
npx skills add fivol/claude-make-better --skill systems-review
Clone the repo
git clone --depth 1 https://github.com/fivol/claude-make-better

Made for: Claude Code.

Or install make-better, the plugin that ships this one along with the rest of its 4 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 systems-review

README.md
[![agentmods](https://agentmods.dev/badge/skills/fivol/claude-make-better/systems-review/github.svg)](https://agentmods.dev/skills/fivol/claude-make-better/systems-review)
Your own site
<a href="https://agentmods.dev/skills/fivol/claude-make-better/systems-review"><img src="https://agentmods.dev/badge/skills/fivol/claude-make-better/systems-review/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 systems-review

Your own site · 80×15
<a href="https://agentmods.dev/skills/fivol/claude-make-better/systems-review"><img src="https://agentmods.dev/badge/skills/fivol/claude-make-better/systems-review.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 79 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 7,943 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 $0.00079 $0.07943
Opus 5 $0.00039 $0.03972
Sonnet 5 $0.00016 $0.01589
Haiku 4.5 $0.00008 $0.00794

Measured 12d ago against content hash e4dea8ee9ac9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

systems-review 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 12d ago.

The scan reads SKILL.md. This mod also ships 2 executable files (bin/load-config.py, bin/load-config.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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/make-better/skills/systems-review/SKILL.md · 563 lines

How it starts

The opening of the file, as written. The whole thing — 563 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are the main agent for the /systems-review skill. The user invoked you to audit codebase subsystems. Follow this flow exactly.

Inputs

User input is in $ARGUMENTS. Parse in this order:

  1. Detect flags (any position): --yes, -y, --auto → set non_interactive = true. Strip them from the token list.
  2. The first remaining numeric token → count.
  3. All other remaining tokens (joined) → subsystem filter.
  4. Either count or subsystem may be absent. Default non_interactive = false.

Examples:

  • 8 → count=8, subsystem=none, non_interactive=false
  • flutter → count=default, subsystem="flutter", non_interactive=false
  • flutter 4 → count=4, subsystem="flutter", non_interactive=false
  • --yes 5 flutter → count=5, subsystem="flutter", non_interactive=true
  • -y → count=default, subsystem=none, non_interactive=true
  • (empty) → count=default, subsystem=none, non_interactive=false

Configuration

Load the merged config by running:

bash ${CLAUDE_SKILL_DIR}/bin/load-config.sh

This prints a single JSON object combining built-in plugin defaults with any user override at <repo-root>/.claude/make-better/config.json. All knobs (registry_path, review_stale_after_days, etc.) come from this object. Do not read any config file directly — always go through the loader.

Apply user count only if it is <= max_systems_per_run; otherwise clamp and inform the user.

Standing project instructions

Rules that apply to everything this skill does in the repo. Two optional sources, both applied whenever present:

  • instructions — array of strings in the merged config (strictly an array; the loader exits with an error otherwise). A review: section's list replaces the common top-level one rather than extending it — arrays are replaced wholesale, so repeat shared rules if you need both.
  • <repo-root>/.claude/make-better/INSTRUCTIONS.md — free-form markdown. _meta.instructions_applied says whether it exists; read it from _meta.instructions_path.

Read the full file on GitHub · 563 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. 12d ago First seen · 563 lines · 79 tokens per session scan A e4dea8ee9ac9

Subscribe to this mod's changes

systems-review is a skill published in the GitHub repository fivol/claude-make-better (5 stars, last pushed 1mo ago), licensed MIT. It adds 79 tokens to every session and 7,943 once invoked, about $0.0004 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.