A documentation audit system made of five focused checks for duplicates, broken links, missing required files, document classification, stale dates, and contract references.

Use it to check a project's documentation tree, classify documents from L1 contracts through L6 auxiliary files, find missing or orphaned documents, and validate cross-references.

It brings several documentation-integrity checks into one audit instead of requiring separate manual reviews.

chronos — Skill for Claude Code by bestdeejay-design

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 bestdeejay-design/agent-skills --skill chronos

Clone the repo

git clone --depth 1 https://github.com/bestdeejay-design/agent-skills

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/bestdeejay-design/agent-skills/chronos/github.svg)](https://agentmods.dev/skills/bestdeejay-design/agent-skills/chronos)

Your own site

<a href="https://agentmods.dev/skills/bestdeejay-design/agent-skills/chronos"><img src="https://agentmods.dev/badge/skills/bestdeejay-design/agent-skills/chronos/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/bestdeejay-design/agent-skills/chronos"><img src="https://agentmods.dev/badge/skills/bestdeejay-design/agent-skills/chronos.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 118 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,709 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.

Model	Per session	Once invoked
Fable 5.1	$0.00118	$0.01709
Opus 5	$0.00059	$0.00855
Sonnet 5	$0.00024	$0.00342
Haiku 4.5	$0.00012	$0.00171

Measured 5d ago against content hash f5a9d638efe8, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

chronos 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.

The scan reads SKILL.md. This mod also ships 22 executable files (src/chronos/__init__.py, src/chronos/__main__.py, src/chronos/agents/__init__.py, …), 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.

skills/chronos/SKILL.md · 212 lines

How it starts

The opening of the file, as written. The whole thing — 212 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Chronos — Documentation Timekeeper

5 AI agents for documentation integrity. Each agent is a focused skill invoked by the Chronos orchestrator.

What it does

Chronos audits project documentation for:

Duplicates — documents with high similarity (Censor)
Broken links — references to non-existent files (Censor)
Missing required docs — mandatory files per classification level (Dewey)
Orphans — documents with no inbound references (Dewey)
Classification — document type: L1 Contracts → L6 Auxiliary (Dewey + Canon)
Stale data — dates older than threshold (Veles)

Agents

Agent	Role	Trigger
Chronos	Orchestrator — runs the full Pantheon	`chronos --preset full`
Censor	Fact-checker — duplicates + broken links	`chronos --preset minimal`
Dewey	Classifier — L1-L6 taxonomy + missing/orphans	`chronos --preset standard`
Veles	Statistician — staleness, metrics, trends	`chronos --preset full`
Canon	Truth-keeper — cross-ref validation against contracts	`chronos --preset standard`

Usage

# Basic audit (duplicates + links only)
chronos --path .

# Standard: check + classify (Censor + Dewey + Canon)
chronos --path . --preset standard

# Full Pantheon: all 5 agents
chronos --path . --preset full

# JSON output for CI
chronos --path . --output json --output-file report.json

# Fail on critical findings
chronos --path . --fail-on critical

# Single agent
chronos --path . --agent censor

Presets

Preset	Agents	Use case
`minimal`	Censor	Quick CI gate — duplicates + broken links
`standard`	Censor + Dewey + Canon	PR validation — check + classify + cross-ref
`full`	All 5 agents	Release audit — complete integrity + staleness

Document Hierarchy (L1–L6)

L1: Contracts        — Machine truth (OpenAPI, AsyncAPI, JSON Schema)
L2: Product Canon    — Human truth (VISION, PRD, ROADMAP, FEATURES)
L3: Engineering Canon— Implementation truth (ARCHITECTURE, ADR, SAGA)
L4: Derived          — Synthesized (REFERENCE, TEST_CASES, DEV_GUIDE)
L5: Artifacts        — Generated (API docs, changelogs, diagrams)
L6: Auxiliary        — Supporting (README, CONTRIBUTING, templates)

Read the full file on GitHub · 212 lines

Files

What ships with it

33 files 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.

5d ago First seen · 212 lines · 118 tokens per session scan A f5a9d638efe8

Subscribe to this mod's changes

chronos is a skill published in the GitHub repository bestdeejay-design/agent-skills (5 stars, last pushed yesterday), licensed MIT. It adds 118 tokens to every session and 1,709 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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