review-lifecycle

review-lifecycle is a skill for Claude Code, Codex from tomzx/agents. It costs 26 tokens per session (1,402 once invoked), scanned A, original, MIT.

A review of a resource lifecycle document, which explains the states a resource can have and the events that move it between them. It checks the transitions, rules that must always hold, specification alignment, and retention behavior.

In plain words
What is it for?
Auditing lifecycle diagrams or documents for resources such as accounts, files, jobs, or records.
Why use it?
It finds invalid state changes, contradictory rules, and unsafe retention assumptions before they become implementation or data-management bugs.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Auditing lifecycle diagrams or documents for resources such as accounts, files, jobs, or records.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/tomzx/agents/review-lifecycle
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 tomzx/agents --skill review-lifecycle
Clone the repo
git clone --depth 1 https://github.com/tomzx/agents

Made for: Claude Code, Codex.

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 review-lifecycle

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/tomzx/agents/review-lifecycle"><img src="https://agentmods.dev/badge/skills/tomzx/agents/review-lifecycle.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 26 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,402 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00026 $0.01402
Opus 5.5 $0.00010 $0.00561
Sonnet 5.5 $0.00005 $0.00280
Haiku 4.5 $0.00003 $0.00140

Measured 22d ago against content hash aa4234b276a2, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

review-lifecycle 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 22d 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.

skills/review-lifecycle/SKILL.md · 127 lines

How it starts

The opening of the file, as written. The whole thing — 127 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Review Lifecycle

Audits a resource lifecycle document and reports findings across six categories: completeness, consistency, spec alignment, transition correctness, invariant soundness, and retention soundness.

Prerequisites

  • Apply the shared SDLC conventions in skills/sdlc/references/shared.md.
  • If no argument is provided, locate the feature directory under .sdlc/features/ whose frontmatter issue field references $ISSUE_NUMBER.
  • .sdlc/features/N-<slug>/lifecycle.md, or a lifecycle document provided in context or as a file path
  • .sdlc/features/N-<slug>/specification.md (for cross-referencing data models, API contracts, and sequences)
  • .sdlc/features/N-<slug>/requirements.md (optional, for cross-referencing functional requirements that drive lifecycle behavior)

Steps

  1. Read the lifecycle document from .sdlc/features/N-<slug>/lifecycle.md if present, otherwise from context or as a file path.
  2. Cross-reference against the specification and requirements if available.
  3. Identify issues in each of the six categories below.
  4. Report findings. Omit any category that has no findings.
  5. Write the findings to .sdlc/features/N-<slug>/review-lifecycle.md with frontmatter artifact: lifecycle, verdict (approved if there are no blocking findings, changes-requested if the author must address findings, rejected for a fundamental flaw), and reviewed_at: <ISO date>, and the findings as the body, per skills/sdlc/references/shared.md. Record any unresolved open questions in the findings body. For any question that carries meaningful risk to the implementation, also invoke /create-assumption to record it formally.

Review Checklist

Completeness

  • Does every resource identified in the specification's data models have a corresponding lifecycle entry (or an explicit decision to exclude it)?
  • Does every state machine have a state diagram showing all states and transitions?
  • Does every state have an entry condition, exit condition, and description?
  • Does every transition have a trigger, actor, side effects, and guard conditions?
  • Are all invariants documented, or is there an explicit statement that no invariants apply?
  • Are retention and expiry policies documented for resources that are not permanent?

Read the full file on GitHub · 127 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. 22d ago Changed · -1 lines aa4234b276a2
  2. 23d ago Changed · -4 lines 3b98abab53ab
  3. 24d ago Changed de1ff6e7b2d1
  4. 1mo ago First seen · 132 lines · 26 tokens per session scan A 0eb3d2cfd477

Subscribe to this mod's changes

review-lifecycle is a skill published in the GitHub repository tomzx/agents (13 stars, last pushed yesterday), licensed MIT. It adds 26 tokens to every session and 1,402 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 2026-09-03.

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