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.
npx agentmods add instructions/contentful/contentful-migration/agents-mdgit clone --depth 1 https://github.com/contentful/contentful-migrationWhat 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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00833 | $0.00833 |
| Opus 5 | $0.00417 | $0.00417 |
| Sonnet 5 | $0.00167 | $0.00167 |
| Haiku 4.5 | $0.00083 | $0.00083 |
Grade A, and why
contentful-migration AGENTS.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 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.
How it starts
The opening of the file, as written. The whole thing — 55 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Agent Guide
Read this file first. It tells you where to find context in this repo.
Quick Reference
| What you need | Where to look |
|---|---|
| How this repo is structured | ARCHITECTURE.md |
| How to build/test/run | CONTRIBUTING.md |
| Why decisions were made | docs/ADRs/ |
| What this repo does | README.md |
| PR review rules | .bito/guidelines/ |
| Active specs/work | docs/specs/ |
Sharp Edges & Invariants
- Never edit
built/— this is generated output fromnpm run build. It is gitignored. Always modify source insrc/. - Never hand-edit
test/fixtures/— these are Nock HTTP recordings. Re-record withNOCK_RECORD=1, not manual edits. index.d.tsis manually maintained — it is the public TypeScript API surface. It must stay in sync with DSL capabilities insrc/lib/migration-steps/. Changes here affect every TypeScript consumer.- CMA version alignment is critical — this library's
contentful-managementdependency must stay aligned withcontentful-cli,contentful-import,contentful-export, andcontentful-batch-libs. Do not bump it in isolation. - This is a library, not a CLI — the user-facing CLI lives in
contentful-cli. This repo owns the migration DSL and execution engine. Do not add CLI UX features here; they belong incontentful-cli. - CommonJS output —
tsconfig.jsontargets CommonJS modules. Do not switch to ESM without coordinating with all downstream consumers. npm cirequiresnpx allow-scriptsafter —.npmrchasignore-scripts=truefor security. Thepreparescript will not run automatically; you must explicitly runnpx allow-scriptsfor packages that need post-install scripts (like esbuild for vitest).- Integration/e2e tests need credentials — they hit real CMA. Never run them without proper
CONTENTFUL_SPACE_ID,CONTENTFUL_INTEGRATION_TEST_CMA_TOKEN, andCONTENTFUL_ORGANIZATION_IDenvironment variables. - Conventional Commits required — semantic-release derives versions from commit messages. Incorrect commit types will produce wrong version bumps.
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.
- 2d ago First seen · 55 lines · 833 tokens per session scan A e9166236bc3b
contentful-migration AGENTS.md is an instructions file published in the GitHub repository contentful/contentful-migration (346 stars, last pushed 3d ago), licensed MIT. It adds 833 tokens to every session, about $0.0042 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.
Other instructions, from other repositories
langgraph AGENTS.md
AGENTS.md instructions for langchain-ai/langgraph, covering agents instructions, corridor security analysis, libraries and dependency map.
airi copilot-instructions.md
Copilot instructions for moeru-ai/airi, covering copilot repository instructions, general rules, validation and output format.
n8n-skills CLAUDE.md
Instructions for czlonkowski/n8n-skills, covering claude.md, project overview, repository structure, the 14 skills and 1. n8n expression syntax.
entroly CLAUDE.md
Instructions for juyterman1000/entroly, covering claude.md, gstack operating protocol, default workflow, entroly trust invariants and review checklist.
Sponsio CLAUDE.md
Instructions for SponsioLabs/Sponsio, covering agent guide for sponsio, what sponsio is, positioning, what to read first and repository map.
autonomous-os AGENTS.md
Instructions for autonomous-ai/autonomous-os, covering agents.md, multi-ide rules, working style, parallel work / subagents and device access rules.