doc-sync

A set of rules for keeping project documentation aligned with code changes, especially changes under `src/`.

In plain words
What is it for?
Choosing which documentation to update after code changes and enforcing self-review, visual review when needed, and user verification first.
Why use it?
It prevents documentation from becoming outdated and requires checks before documentation is updated.

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/savedpixel/ai-agent-rules-generator/doc-sync
Clone the repo
git clone --depth 1 https://github.com/savedpixel/ai-agent-rules-generator

Made for: Cursor.

Per session 0 Nothing until a file matches its globs; then the whole rule loads.
When invoked 1,555 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 $0.00000 $0.01555
Opus 5 $0.00000 $0.00777
Sonnet 5 $0.00000 $0.00311
Haiku 4.5 $0.00000 $0.00155

Measured 2d ago against content hash 594e3eb27a7d, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

doc-sync 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/glitch-payment-gateway/v1.1/cursor/generated/.cursor/rules/doc-sync.mdc · 205 lines

How it starts

The opening of the file, as written. The whole thing — 205 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Documentation Sync Rules

These rules apply when modifying files under src/. They define which documentation to update and when.


MANDATORY: Auto-Update Documentation

Whenever you implement changes, you MUST update the relevant documentation files. Never skip this step. If you are unsure which docs to update, consult the Documentation Trigger Map below and ask the user if needed — do not skip doc updates because you're uncertain.

Documentation Timing Gate (BLOCKING — requires user verification first)

You may NOT update documentation, rebuild docs, update task logs, or perform any batch-boundary step until ALL of the following gates have passed in order:

  1. Agent Self-Evaluation Gate — You confirmed this is the best solution (see task.mdc → Agent Self-Evaluation Gate).
  2. Visual Verification Gate — If the work affects front-end/UI/visual elements, you opened a browser, took screenshots, and visually confirmed (see task.mdc → Visual Verification Gate).
  3. User Verification Gate — The user has either tested and confirmed, OR explicitly waived testing.

If the user has not yet responded to the verification prompt, you may NOT:

  • Edit any file in docs/
  • Edit any file in docs/task/logs/
  • Edit any file in docs/agent-observations/
  • Stage, commit, or push any changes

Scenario Evidence Requirement (BLOCKING): Documentation is blocked until all required behavior-path scenarios were executed end-to-end.

Untested Disclosure Requirement (BLOCKING): The verification summary must include an explicit Not Tested section listing every unexecuted check/scenario (or Not Tested: none).

CRITICAL — NO SKIPPING: You are never permitted to bypass this timing gate on your own judgment.

Update "Last updated" Date on Every Doc Edit

Whenever you edit any markdown file in docs/, you MUST also update its > **Last updated:** YYYY-MM-DD line (or <!-- Updated: YYYY-MM-DD --> comment) to today's date.

Read the full file on GitHub · 205 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. 2d ago First seen · 205 lines · 0 tokens per session scan A 594e3eb27a7d

Subscribe to this mod's changes

doc-sync is a cursor rule published in the GitHub repository savedpixel/ai-agent-rules-generator (7 stars, last pushed 4mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 1,555 tokens. 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.