Borrowing it
Nothing to install: this file belongs to s2-streamstore/s2-sdk-typescript. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/s2-streamstore/s2-sdk-typescript/main/AGENTS.mdgit clone --depth 1 https://github.com/s2-streamstore/s2-sdk-typescriptWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/instructions/s2-streamstore/s2-sdk-typescript/agents-md)<a href="https://agentmods.dev/instructions/s2-streamstore/s2-sdk-typescript/agents-md"><img src="https://agentmods.dev/badge/instructions/s2-streamstore/s2-sdk-typescript/agents-md/github.svg" alt="Measured on agentmods" height="20"></a>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.
<a href="https://agentmods.dev/instructions/s2-streamstore/s2-sdk-typescript/agents-md"><img src="https://agentmods.dev/badge/instructions/s2-streamstore/s2-sdk-typescript/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00246 | $0.00246 |
| Opus 5.5 | $0.00098 | $0.00098 |
| Sonnet 5.5 | $0.00049 | $0.00049 |
| Haiku 4.5 | $0.00025 | $0.00025 |
Grade A, and why
s2-sdk-typescript 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 9d 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.
What it actually says
Agent Instructions
- Use
bun. Don't change dependencies orbun.lockunless asked. - Run
bun run checkandbun run testbefore committing. E2E tests (*.e2e.test.ts) needS2_ACCESS_TOKEN. - Don't edit
packages/streamstore/src/generated/by hand. Regenerate withbun run gen:openapiorbun run gen:proto. - Add a changeset for user-facing changes:
patch, orminorwith a Breaking: note for breaking changes. - Use conventional commit PR titles. The PR title and description become the squash commit.
- Keep tests few and load-bearing:
- Test behavior that comes from parts working together (e.g. retries across transports, concurrency, I/O), not what one function plainly does.
- Don't test a lone guard, branch, or one-line rule. A comment explaining why is better.
- A test must fail when what it guards breaks. Verify against the base branch, and fail fast instead of hanging.
- Prefer one test of an invariant over several that restate its steps.
- Real bugs get regression tests that reference the issue.
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.
- 9d ago First seen · 14 lines · 246 tokens per session scan A 8adda42468f8
s2-sdk-typescript AGENTS.md is an instructions file published in the GitHub repository s2-streamstore/s2-sdk-typescript (36 stars, last pushed yesterday), licensed MIT. It adds 246 tokens to every session, about $0.0010 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 2026-10-21.
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