A documentation consistency checker for CLI projects. It follows the files that describe a tool—such as skills, operating instructions, READMEs, and plugin references—after code changes.

Use it after fixing bugs, adding commands, changing authentication, or refactoring to find downstream documentation that needs updating.

It helps prevent documentation from describing old commands, output fields, authentication behaviour, dependencies, or examples after the code has changed.

sync-check — Skill for Claude Code and Codex by ItamarZand88: A documentation consistency checker for CLI projects.

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/itamarzand88/cli-anything-web/sync-check

Any agent

npx skills add ItamarZand88/CLI-Anything-WEB --skill sync-check

Clone the repo

git clone --depth 1 https://github.com/ItamarZand88/CLI-Anything-WEB

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/itamarzand88/cli-anything-web/sync-check.svg)](https://agentmods.dev/skills/itamarzand88/cli-anything-web/sync-check)

Your own site

<a href="https://agentmods.dev/skills/itamarzand88/cli-anything-web/sync-check"><img src="https://agentmods.dev/badge/skills/itamarzand88/cli-anything-web/sync-check.svg" alt="Measured on agentmods" height="20"></a>

Per session 95 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,811 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.

Model	Per session	Once invoked
Fable 5	$0.00095	$0.01811
Opus 5	$0.00048	$0.00905
Sonnet 5	$0.00019	$0.00362
Haiku 4.5	$0.00010	$0.00181

Measured 5d ago against content hash a6b4c113381b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

sync-check 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 5d 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/skills/sync-check/SKILL.md · 172 lines

How it starts

The opening of the file, as written. The whole thing — 172 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Sync Check

After any code change, verify all related files are synchronized. This catches the "fixed the bug but forgot to update the skill/SOP/plugin docs" problem.

How to Use

Run /sync-check after making changes. It will:

Detect what changed (from git diff or conversation context)
Check all downstream files that depend on the change
Report what's out of sync
Offer to fix each one

The Dependency Web

Every change touches multiple files. Here's the full map:

Code Change → Documentation Updates

CLI code changed (client.py, commands/*.py, auth.py)
  ├── .claude/skills/<app>-cli/SKILL.md     (commands, output fields, examples)
  ├── <app>/agent-harness/<APP>.md           (SOP: rpcid table, data models)
  ├── <app>/agent-harness/cli_web/<app>/README.md  (usage examples, deps)
  ├── <app>/agent-harness/setup.py           (dependencies)
  └── <app>_cli.py _print_repl_help()        (REPL help must list all commands)

Bug Fix → Plugin Lesson Updates

Bug found and fixed in any CLI
  ├── Was it a pattern that could repeat in future CLIs?
  │   YES → Add to the relevant plugin reference file:
  │   ├── auth-strategies.md "Known Pitfalls" table    (auth bugs)
  │   ├── google-batchexecute.md                       (RPC/batchexecute bugs)
  │   ├── ssr-patterns.md "HTML Scraping Pitfalls"     (scraping bugs)
  │   ├── protection-detection.md                      (anti-bot/WAF bugs)
  │   └── traffic-patterns.md                          (protocol detection bugs)
  │
  ├── Is it a universal lesson (applies to ALL CLIs)?
  │   YES → Add to HARNESS.md "Lessons Learned" cross-reference table
  │
  └── Does it change a critical convention?
      YES → Update CLAUDE.md "Critical Conventions" section

New Command Added → Full Update Chain

New command added to a CLI
  ├── .claude/skills/<app>-cli/SKILL.md     (add command + options + output fields)
  ├── <app>_cli.py _print_repl_help()        (add to REPL help)
  ├── <app>/agent-harness/<APP>.md           (add endpoint to API map)
  ├── README.md (repo root)                  (if it changes the CLI's capabilities)
  └── Run: cli-web-<app> <new-cmd> --json    (verify output matches skill docs)

Read the full file on GitHub · 172 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.

5d ago First seen · 172 lines · 95 tokens per session scan A a6b4c113381b

Subscribe to this mod's changes

sync-check is a skill published in the GitHub repository ItamarZand88/CLI-Anything-WEB (215 stars, last pushed 4d ago), licensed MIT. It adds 95 tokens to every session and 1,811 once invoked, about $0.0005 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 2026-08-30.

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