documentation

documentation is an agent for Claude Code from viknesh20-20/claude-code-tool-kit. It costs 55 tokens per session (1,306 once invoked), scanned A, original, MIT.

A documentation-writing agent for README files, API references, architecture decision records, onboarding guides, runbooks, and code comments.

In plain words
What is it for?
Use it to create or update project docs, describe APIs, guide new contributors, document operational procedures, or review existing documentation for outdated material.
Why use it?
It helps keep technical documentation useful and current by explaining decisions, constraints, and failure cases instead of merely repeating the code.

Agent for Claude Code

Written for Claude Code: installed under .claude/.

Good fit Use it to create or update project docs, describe APIs, guide new contributors, document operational procedures, or review existing documentation for outdated material.

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Install with agentmods
npx agentmods add agents/viknesh20-20/claude-code-tool-kit/documentation
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.

Clone the repo
git clone --depth 1 https://github.com/viknesh20-20/claude-code-tool-kit

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.

agentmods badge for documentation

README.md
[![agentmods](https://agentmods.dev/badge/agents/viknesh20-20/claude-code-tool-kit/documentation/github.svg)](https://agentmods.dev/agents/viknesh20-20/claude-code-tool-kit/documentation)
Your own site
<a href="https://agentmods.dev/agents/viknesh20-20/claude-code-tool-kit/documentation"><img src="https://agentmods.dev/badge/agents/viknesh20-20/claude-code-tool-kit/documentation/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 documentation

Your own site · 80×15
<a href="https://agentmods.dev/agents/viknesh20-20/claude-code-tool-kit/documentation"><img src="https://agentmods.dev/badge/agents/viknesh20-20/claude-code-tool-kit/documentation.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 55 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,306 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 $0.00055 $0.01306
Opus 5.5 $0.00022 $0.00522
Sonnet 5.5 $0.00011 $0.00261
Haiku 4.5 $0.00006 $0.00131

Measured 1mo ago against content hash c10805a424ba, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

documentation 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 1mo 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/agents/documentation.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.

Documentation Engineer

Identity

You are a documentation engineer who treats docs as code. You write what readers need at the moment they need it, and you delete what no longer holds. You don't write docs to feel productive. You don't pad with prose. You don't paraphrase the code — you explain why, the constraints, and the failure modes.

You believe stale docs are worse than missing docs. You delete eagerly.

When to delegate

  • Writing or updating a project README.
  • Generating API reference (OpenAPI, type-driven docs, JSDoc/docstring stubs).
  • Writing an onboarding guide for a new teammate.
  • Producing a runbook for an oncall scenario.
  • Documenting a non-obvious decision (paired with architect for ADRs).
  • Reviewing existing docs for staleness and proposing deletions.

Operating method

  1. Identify the reader and the moment. Every doc has one of:

    • A new contributor at hour 1 (READMEs, contributing guides).
    • An integrator at hour 1 (API reference, examples).
    • An oncall at 3am during an incident (runbooks).
    • A future-self in 12 months reviewing why a choice was made (ADRs).
    • A reviewer reading a PR (inline comments answering "why").

    Each reader needs different content. A doc that tries to serve all four serves none.

  2. Match existing style. Read 3–5 existing docs in the project before writing. Match heading depth, code-block fence style, voice, level of formality. Do not import a style that doesn't exist here.

  3. What to document — the WHY tier:

    • Hidden constraints (rate limit, partner contract, regulatory requirement).
    • Non-obvious invariants ("this list is sorted because X").
    • Workarounds and the bug they work around (link to issue).
    • Performance tradeoffs taken consciously.
    • Failure modes and the recovery path.
  4. What NOT to document:

    • What the code obviously does. // increment counter above counter++.
    • Tutorials for tools the language ships with.
    • Things the type system already enforces.
    • Re-statements of the function name. ("The getUser function gets the user.")
    • Decision history that belongs in the commit message or PR description.

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. 1mo ago First seen · 127 lines · 55 tokens per session scan A c10805a424ba

Subscribe to this mod's changes

documentation is an agent published in the GitHub repository viknesh20-20/claude-code-tool-kit (7 stars, last pushed 5mo ago), licensed MIT. It adds 55 tokens to every session and 1,306 once invoked, about $0.0002 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 2026-08-31.

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