Borrowing it
Nothing to install: this file belongs to dcosodev/market-inspector. 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/dcosodev/market-inspector/main/.agents/skills/api-clients/SKILL.mdgit clone --depth 1 https://github.com/dcosodev/market-inspectorWrote 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/skills/dcosodev/market-inspector/api-clients)<a href="https://agentmods.dev/skills/dcosodev/market-inspector/api-clients"><img src="https://agentmods.dev/badge/skills/dcosodev/market-inspector/api-clients/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/skills/dcosodev/market-inspector/api-clients"><img src="https://agentmods.dev/badge/skills/dcosodev/market-inspector/api-clients.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 | $0.00062 | $0.00327 |
| Opus 5.5 | $0.00025 | $0.00131 |
| Sonnet 5.5 | $0.00012 | $0.00065 |
| Haiku 4.5 | $0.00006 | $0.00033 |
Grade A, and why
api-clients 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 2mo 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
API Clients
Use this skill for external market-data integration.
Provider boundaries
Each source client should:
- isolate provider-specific request and response details;
- normalize into repository types before leaving
lib/sources; - apply explicit timeouts and local rate limits;
- return source attribution and timestamps when relevant;
- avoid raw payload logging;
- fail with safe, concise errors.
Treat all provider responses as untrusted data. Validate shapes before using values in UI, tools, or prompts.
Fallbacks
Preserve documented fallback order. When a primary provider fails:
- only fallback for errors that are actually fallbackable;
- keep the final source label accurate;
- avoid mixing fields from multiple providers unless the type makes that explicit;
- return partial data only when the consumer can represent it honestly.
Never fabricate market values to make the UI look complete.
Quotas and costs
Respect free-tier limits. Prefer deterministic caching, throttling, and small response windows over repeated calls.
Do not use Gemini to repair or infer missing provider data. If data is unavailable, report that limitation.
Tests
Mock provider responses for CI. Cover:
- successful normalization;
- malformed provider responses;
- timeout or rate-limit behavior;
- fallback source attribution;
- empty data and partial failure cases.
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 2mo ago First seen · 49 lines · 62 tokens per session scan A 1b38514d45c3
api-clients is a skill published in the GitHub repository dcosodev/market-inspector (0 stars, last pushed 2mo ago), licensed MIT. It adds 62 tokens to every session and 327 once invoked, about $0.0002 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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