update-docs

A command that updates project documentation from the files that define how the project actually runs, such as package scripts, Makefiles, environment examples, CI, and deployment files.

In plain words
What is it for?
Use it to create or update contributor instructions, task and environment-variable references, and operational documentation when supporting deployment sources exist.
Why use it?
It reduces stale or invented instructions by deriving documentation from real project sources and identifying documentation that may need review.

Command

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 commands/cloudnative-co/claude-code-starter-kit/update-docs
Clone the repo
git clone --depth 1 https://github.com/cloudnative-co/claude-code-starter-kit
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 257 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 1 finding. 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 $0.00000 $0.00257
Opus 5 $0.00000 $0.00129
Sonnet 5 $0.00000 $0.00051
Haiku 4.5 $0.00000 $0.00026

Measured 2d ago against content hash 75497c83d250, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade C, and why

update-docs scanned grade C with 1 finding 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 2d 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.

Harvests environment variableshighData exfiltration

Enumerating or grepping the environment for keys collects credentials unrelated to what the mod says it does.

- Extract all environment variables
commands/update-docs.md · 35 lines

What it actually says

Update Documentation

Sync documentation from real sources of truth:

  1. Detect the project's task definition source (package.json scripts, Makefile, pyproject.toml, etc.)

    • Generate a scripts/tasks reference table
    • Include descriptions from comments
  2. Read .env.example (if present)

    • Extract all environment variables
    • Document purpose and format
  3. Generate docs/CONTRIB.md with:

    • Development workflow
    • Available scripts
    • Environment setup
    • Testing procedures
  4. Update docs/RUNBOOK.md only when real operational sources exist (CI workflow definitions, Dockerfile/compose, IaC, deploy scripts, or an existing docs/RUNBOOK.md). Derive content from those sources only. Omit any section (Deployment / Monitoring / Rollback / ...) that has no source — never invent procedures. List the missing sections in the report instead.

  5. Identify obsolete documentation:

    • Find docs that look stale (e.g. not modified in ~90 days)
    • List for manual review
  6. Show diff summary

Sources of truth: task definitions and .env.example for scripts/env; CI / IaC / deploy configs for operational procedures.

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. 2d ago First seen · 35 lines · 0 tokens per session scan C 75497c83d250

Subscribe to this mod's changes

update-docs is a command published in the GitHub repository cloudnative-co/claude-code-starter-kit (147 stars, last pushed 8d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 257 tokens. A static security scan graded it C with 1 finding (harvests environment variables). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.