api-ref-router

A routing rule for OpenAPI files, which describe how a web API works, including its requests and responses. It directs evaluation, review, or repair work to the matching procedure.

In plain words
What is it for?
Use it when evaluating, reviewing, or fixing OpenAPI JSON files under the static folder.
Why use it?
It removes guesswork about which API procedure to use and applies different checks depending on whether you are reviewing or changing the file.

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/adobedocs/ff-services-docs/api-ref-router
Clone the repo
git clone --depth 1 https://github.com/AdobeDocs/ff-services-docs

Made for: Cursor.

Per session 0 Nothing until a file matches its globs; then the whole rule loads.
When invoked 410 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 $0.00410
Opus 5 $0.00000 $0.00205
Sonnet 5 $0.00000 $0.00082
Haiku 4.5 $0.00000 $0.00041

Measured 2d ago against content hash c0cc2c33b4ba, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

api-ref-router 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.

.cursor/rules/api-ref-router.mdc · 36 lines

What it actually says

API reference router

When editing or reviewing OpenAPI JSON under static/, use the right skill. Load modular rules only when needed.

Task routing

User intent Skill Edits?
/api-eval, evaluate, audit api-eval No — findings only
/api-review, catalog descriptions api-review No — tables for manual review
/api-fix, fix lint or structure api-fix Yes — lint + api-ref-structure

Resolve the spec path with _shared/resolve-api-spec.md. Do not assume petstore.json.

Non-negotiable description rule

  • HTTP response description (status lines): Title Case, no trailing period (e.g. Internal Server Error).
  • All other descriptions (operations, parameters, schemas, headers): complete sentences with periods.

Modular rules (load on demand)

  • api-ref-structure.mdc — section order, license, JSON/$ref
  • api-ref-copy.mdc — summaries, punctuation, public-facing text
  • api-ref-schema.mdc — anyOf, type arrays, $ref/title
  • api-ref-examples.mdc — Redocly examples
  • api-ref-tags-errors.mdc — tags, errors, auth
  • api-ref-ffs-styleguide.mdc — Firefly Services API Style Guide (api-eval only)

Legacy monolith: eval-API-ref.mdc (deprecated stub).

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 · 36 lines · 0 tokens per session scan A c0cc2c33b4ba

Subscribe to this mod's changes

api-ref-router is a cursor rule published in the GitHub repository AdobeDocs/ff-services-docs (4 stars, last pushed 2mo ago), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 410 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.