spacecat-api-service: Instructions file for Claude Code

CLAUDE.md

spacecat-api-service CLAUDE.md is an instructions file for Claude Code from adobe/spacecat-api-service. It costs 8,064 tokens per session, scanned A, original, Apache-2.0.

A project instruction file for Adobe's SpaceCat API service, a web service that runs behind Fastly, a content-delivery network.

In plain words
What is it for?
It covers starting development, running unit and end-to-end tests, checking types, linting, and running one test file.
Why use it?
It gives coding agents the repository-specific commands and operating details needed to work consistently on the service.

Instructions file for Claude Code ✓ vendor

Written for Claude Code: the file is CLAUDE.md. Also seen: reads .claude/ paths; mentions CLAUDE.md; mentions Claude Code.

This is adobe/spacecat-api-service's own configuration. It tells Claude Code how to work on spacecat-api-service itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything spacecat-api-service configures →

Needs its repository: it reads a path above its own folder, which exists only inside the repository. The line is import { CAP_CONFIGURATION_WRITE } from '../routes/capability-constants.js';.

About the project

SpaceCat API Service is an HTTP API for working with SpaceCat data, including a server-side proxy for the Semrush AIO API and a PostgreSQL-backed data service. Developers and operators use it to access and run the Edge Delivery services data system.

adobe/spacecat-api-service · 10 stars · on GitHub

Reuse

Borrowing it

Nothing to install: this file belongs to adobe/spacecat-api-service. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/adobe/spacecat-api-service/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/adobe/spacecat-api-service

Made for: Claude Code.

Wrote this? Show the measurements

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README.md
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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.

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Per session 8,064 This file is loaded in full into every session.
When invoked 8,064 The same file — it is already loaded in full.
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 $0.08064 $0.08064
Opus 5.5 $0.03226 $0.03226
Sonnet 5.5 $0.01613 $0.01613
Haiku 4.5 $0.00806 $0.00806

Measured 1mo ago against content hash 5d3ba88de0b5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

spacecat-api-service CLAUDE.md 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.md · 684 lines

How it starts

The opening of the file, as written. The whole thing — 684 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

Fastly

This service runs behind Fastly CDN service DlxppS2VoAizEqJ9bPasq6 (AEM Sites Optimizer [SpaceCat] Prod) at spacecat.experiencecloud.live. VCL snippets handle routing, CORS, HSTS, and API gateway auth. See mysticat-architecture Fastly services reference for full reference.

Commands

Development

npm start                  # Start development server with hot reload
npm test                   # Run unit tests (excludes Post-Deploy tests)
npm run test:bundle        # Test production bundle
npm run test-postdeploy    # Run post-deployment tests
npm run test-e2e           # Run end-to-end tests (30s timeout)
npm run lint               # Run ESLint
npm run lint:fix           # Auto-fix linting issues
npm run type-check         # Both tiers below; blocking gate in CI and pre-commit
npm run type-check:base    # Opt-in tsc --checkJs over // @ts-check files (serenity)
npm run type-check:strict  # noImplicitAny over the strict file list (see tsconfig.strict.json)

Single Test Execution

npx mocha test/path/to/specific.test.js              # Run single test file
npx mocha test/path/to/specific.test.js -g "pattern" # Run tests matching pattern

Integration Tests

# PostgreSQL suite (requires Docker + ECR access)
npx mocha --require test/it/postgres/harness.js --timeout 30000 'test/it/postgres/**/*.test.js'

# Single IT test file
npx mocha --require test/it/postgres/harness.js --timeout 30000 test/it/postgres/sites.test.js

# Mock-backed suites (e.g. serenity, which drives the Semrush vendor mock
# containers over real HTTPS — not in-process stubs, no live Semrush) are slower
# than the pure-DB suites — run them with --timeout 60000:
npx mocha --require test/it/postgres/harness.js --timeout 60000 test/it/postgres/serenity.test.js

Read the full file on GitHub · 684 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 Changed · +2 lines · +113 tokens per session 5d3ba88de0b5
  2. 1mo ago Changed · +1 lines · +92 tokens per session 3b2d82597762
  3. 1mo ago First seen · 681 lines · 7,859 tokens per session scan A 202de6914ced

Subscribe to this mod's changes

spacecat-api-service CLAUDE.md is an instructions file published in the GitHub repository adobe/spacecat-api-service (10 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 8,064 tokens to every session, about $0.0323 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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