Borrowing it
Nothing to install: this file belongs to gadicc/yahoo-finance2. 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/gadicc/yahoo-finance2/dev/AGENTS.mdgit clone --depth 1 https://github.com/gadicc/yahoo-finance2Wrote 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/gadicc/yahoo-finance2/agents-md)<a href="https://agentmods.dev/instructions/gadicc/yahoo-finance2/agents-md"><img src="https://agentmods.dev/badge/instructions/gadicc/yahoo-finance2/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/gadicc/yahoo-finance2/agents-md"><img src="https://agentmods.dev/badge/instructions/gadicc/yahoo-finance2/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 | $0.01413 | $0.01413 |
| Opus 5.5 | $0.00565 | $0.00565 |
| Sonnet 5.5 | $0.00283 | $0.00283 |
| Haiku 4.5 | $0.00141 | $0.00141 |
Grade B, and why
yahoo-finance2 AGENTS.md scanned grade B with 1 finding 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.
Reads agent configuration directoriesmediumAgent snooping
.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.
if not sure. For Codex, ~/.codex/config.toml has top level `model` and How it starts
The opening of the file, as written. The whole thing — 120 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Agent Notes
This file applies to the whole repository. For fuller contributor guidance, read CONTRIBUTING.md; this file repeats the essentials agents are most likely to need during edits.
Project Context
- This is a Deno-first TypeScript library that is published to npm via generated output.
- Source code lives under
src/. Tests usually sit beside the module they cover and use fixtures fromtests/fixtures/http. - The
npm/directory is generated package output. Prefer editing source files undersrc/and regenerate npm output only when the task explicitly calls for it. - The default development branch is
dev.
Commands
- Run the full test suite with
deno task test. - Run
deno task test:replayfor a cache-only baseline that fails on missing fixtures and denies live network requests and fixture writes. - Run
FETCH_DEVEL=recache deno task test:recachefor a paced live batch after an automatic replay-only baseline. It aborts on 429 without rolling back earlier captures; generic getCrumb behavior tests remain replay-only. - Run a targeted test with
deno task test path/to/file.test.ts. - Run serial tests with
deno task test:serial path/to/file.test.tswhen debugging or limiting live Yahoo request concurrency. - Run schema generation with
deno task schemaafter changing exported interfaces marked with@yf-schema. - Use
deno fmtanddeno lintfor formatting and linting. - Build npm output with
deno task build:npmwhen generated npm artifacts are required.
Testing And Fixtures
- Tests use
fetch-mock-cacheand cached HTTP fixtures for repeatability. - New module tests should call
setupCache()fromtests/common.tswhen they touch Yahoo HTTP responses. FETCH_DEVEL=nocacheforces live network tests without cache.FETCH_DEVEL=recacheupdates cache for failing tests. Be careful with fixture churn, and do not recache files ending in.static.jsonor.fake.json.- Before committing recached fixtures, inspect their HTTP status and payload. Do not commit transient failures such as rate limits, consent interstitials, timeouts, or upstream 5xx responses as replacements for successful fixtures.
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 Changed · +13 lines · +187 tokens per session 0250c668675b
- 12d ago Changed · +4 lines · +57 tokens per session 74036691148c
- 24d ago Changed · +31 lines · +431 tokens per session 7f5308f348bb
- 2mo ago First seen · 72 lines · 738 tokens per session scan B 589a4a1e44d5
yahoo-finance2 AGENTS.md is an instructions file published in the GitHub repository gadicc/yahoo-finance2 (810 stars, last pushed yesterday), licensed MIT. It adds 1,413 tokens to every session, about $0.0057 per session on Opus 5.5. A static security scan graded it B with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other instructions, from other repositories
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