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/choyiny/saasmail/agents-mdgit clone --depth 1 https://github.com/choyiny/saasmailWhat 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 | $0.01548 | $0.01548 |
| Opus 5 | $0.00774 | $0.00774 |
| Sonnet 5 | $0.00310 | $0.00310 |
| Haiku 4.5 | $0.00155 | $0.00155 |
Grade A, and why
saasmail 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 3d 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 — 83 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Agent / contributor notes
Conventions for coding agents (and humans) working in this repo. Product docs live in README.md; licensing and human contribution flow in CONTRIBUTING.md; Claude Code skills in CLAUDE.md.
Doc map
| Doc | Use for |
|---|---|
README.md |
Setup, deploy, local dev, API overview |
CONTRIBUTING.md |
Fork/PR process, Apache 2.0, CoC |
migrations/README.md |
drizzle-kit generate / apply details |
.github/pull_request_template.md |
PR checklist maintainers expect (not a CI enforcer) |
Tooling
- Use yarn, not npm (
yarn install --frozen-lockfilein CI). - Format:
yarn formatbefore push. Husky runslint-staged→ Prettier on staged*.{js,jsx,ts,tsx,json,css,md,html}at commit; CI runs full-treeyarn format:check(so husky alone is not enough if you skip staging a dirty file). - Typecheck:
yarn tsc --noEmit - Unit tests:
yarn test(invokesvitest run --config vitest.config.test.ts— barevitest runhits the wrong pool config and fails to start). - E2E:
yarn test:e2e(Playwright; wipes local D1 — re-seed withyarn db:seed:devafterward). NeedsDEMO_MODE=1+DISABLE_PASSKEY_GATE=truein.dev.vars, andhttp://localhost:8788inTRUSTED_ORIGINSinwrangler.jsonc(see.dev.vars.example/wrangler.jsonc.exampleand README “End-to-end tests”).
Local yarn test prerequisites
Vitest uses @cloudflare/vitest-pool-workers, which requires a present wrangler.jsonc (gitignored) and dist/client/. Match CI:
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.
- 3d ago First seen · 83 lines · 1,548 tokens per session scan A bd13a5349d3f
saasmail AGENTS.md is an instructions file published in the GitHub repository choyiny/saasmail (246 stars, last pushed 3d ago), licensed Apache-2.0. It adds 1,548 tokens to every session, about $0.0077 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
hqbase AGENTS.md
AGENTS.md instructions for HQBase/hqbase, covering hqbase workspace guide, boundaries and quality gate.
kolea CLAUDE.md
Claude Code instructions for robconery/kolea, covering 🐦 kōlea, 📚 docs — read before you write, 🔁 phase commands, 🛠 stack and 🧭 layering.
shoot-email AGENTS.md
AGENTS.md instructions for powersurge01/shoot-email, covering shoot email cli planning notes, product direction, recommended architecture, cloudflare fit and hosting decision.
website-email AGENTS.md
AGENTS.md instructions for mifdlaldev/website-email, covering project knowledge base, openspec project, structure, where to look and code map (hot paths).
flarestarter AGENTS.md
Instructions for FlareStarter/flarestarter, covering agents.md, what this is, structure, conventions and commands.
karngyan.com CLAUDE.md
Instructions for karngyan/karngyan.com, covering claude.md, commands, architecture, conventions and recipes.