update-docs

update-docs is a cursor rule for Cursor from panther-labs/mcp-panther. It costs 26 tokens per session, scanned A, original, Apache-2.0.

A rule requiring the README.md file—the main project guide—to be updated when new functionality is added for users.

In plain words
What is it for?
Maintaining the README after adding features that users need to know about.
Why use it?
It helps keep documentation aligned with the software's user-facing behaviour.

Cursor rule for Cursor

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 rules/panther-labs/mcp-panther/update-docs
Clone the repo
git clone --depth 1 https://github.com/panther-labs/mcp-panther

Made for: Cursor.

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 update-docs

README.md
[![agentmods](https://agentmods.dev/badge/rules/panther-labs/mcp-panther/update-docs.svg)](https://agentmods.dev/rules/panther-labs/mcp-panther/update-docs)
Your own site
<a href="https://agentmods.dev/rules/panther-labs/mcp-panther/update-docs"><img src="https://agentmods.dev/badge/rules/panther-labs/mcp-panther/update-docs.svg" alt="Measured on agentmods" height="20"></a>
Per session 26 This file is loaded in full into every session.
When invoked 26 The same file — it is already loaded in full.
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 5.1 $0.00026 $0.00026
Opus 5 $0.00013 $0.00013
Sonnet 5 $0.00005 $0.00005
Haiku 4.5 $0.00003 $0.00003

Measured 5d ago against content hash 0c439ecc59a0, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

update-docs 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.

.cursor/rules/update-docs.mdc · 6 lines

What it actually says

UPDATE THE README.md AFTER ADDING new user-facing functionality.

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. 5d ago First seen · 6 lines · 26 tokens per session scan A 0c439ecc59a0

Subscribe to this mod's changes

update-docs is a cursor rule published in the GitHub repository panther-labs/mcp-panther (47 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 26 tokens to every session, 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.