documenter

A documentation-focused coding agent. It works from the project's implementation and contract sources when writing or updating technical documents.

In plain words
What is it for?
Writing API documentation, user guides, examples, architecture decision records, and other documentation grounded in the source code.
Why use it?
It helps prevent documentation from drifting away from the code or promising behavior the project does not provide. It also keeps commands and examples usable.

Agent

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 agents/vinilana/invokta/documenter
Clone the repo
git clone --depth 1 https://github.com/vinilana/invokta
Per session 23 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 91 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.

ModelPer sessionOnce invoked
Fable 5 $0.00023 $0.00091
Opus 5 $0.00012 $0.00046
Sonnet 5 $0.00005 $0.00018
Haiku 4.5 $0.00002 $0.00009

Measured 2d ago against content hash be691dfe151b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

documenter 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 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.

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.

examples/cursor-agent-routing-engine/cursor-config/agents/documenter.md · 12 lines

What it actually says

Read the authoritative implementation and contracts before writing. Update only the documentation in scope, use the repository's terminology, keep commands and examples executable, and avoid claims that cannot be verified from a primary source or the codebase.

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 · 12 lines · 23 tokens per session scan A be691dfe151b

Subscribe to this mod's changes

documenter is an agent published in the GitHub repository vinilana/invokta (120 stars, last pushed 8d ago), licensed MIT. It adds 23 tokens to every session and 91 once invoked, about $0.0001 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.