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 skills add LambdaTest/agent-skills --skill popular-api-fetchergit clone --depth 1 https://github.com/LambdaTest/agent-skillsWrote 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/lambdatest/agent-skills/popular-api-fetcher)<a href="https://agentmods.dev/skills/lambdatest/agent-skills/popular-api-fetcher"><img src="https://agentmods.dev/badge/skills/lambdatest/agent-skills/popular-api-fetcher/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/lambdatest/agent-skills/popular-api-fetcher"><img src="https://agentmods.dev/badge/skills/lambdatest/agent-skills/popular-api-fetcher.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 4 findings, up to high
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- high Tool Misuse · line 51 Tool parameters are crafted to achieve unintended or unsafe behavior. Parameter abuse can bypass intended safety checks (e.g. shell=True, --force, dangerous glob patterns).Fix: Validate all tool parameters against an allowlist. Reject dangerous parameter values (shell=True, --force, -rf /) and use safe defaults.
- medium Data Exfiltration · line 39 Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
- medium Data Exfiltration · line 91 Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
- medium Data Exfiltration · line 111 Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
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 | $0.00163 | $0.01381 |
| Opus 5 | $0.00081 | $0.00691 |
| Sonnet 5 | $0.00033 | $0.00276 |
| Haiku 4.5 | $0.00016 | $0.00138 |
Grade A, and why
api-fetcher-specific-domains 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 11d 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 — 179 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Domain-Specific API Skill
Provide real-world API patterns and examples from well-known domains and platforms.
Domain Coverage
Read the relevant section below when the user asks about a specific domain.
Payments (Stripe-style)
Base URL: https://api.stripe.com/v1
Auth: Basic auth with secret key (sk_live_...) as username, no password
POST /charges — create a charge
POST /payment_intents — create payment intent (preferred)
POST /payment_intents/{id}/confirm — confirm payment
POST /refunds — issue refund
GET /customers/{id} — get customer
POST /customers — create customer
POST /customers/{id}/sources — attach payment method
GET /subscriptions/{id} — get subscription
POST /subscriptions — create subscription
DELETE /subscriptions/{id} — cancel subscription
Shipping / Logistics
POST /shipments — create shipment, get tracking number
GET /shipments/{id}/track — real-time tracking events
POST /shipments/{id}/cancel — cancel before pickup
POST /rates — get rate quotes (carrier, price, ETA)
GET /carriers — list supported carriers
POST /labels — generate shipping label (returns PDF URL)
POST /pickups — schedule pickup
Communication (Twilio-style)
POST /Messages — send SMS
POST /Calls — initiate call
GET /Messages/{sid} — message status
POST /Verify/Services/{sid}/Verifications — send OTP
POST /Verify/Services/{sid}/VerificationCheck — verify OTP
POST /Messages/media — send MMS with attachment
GET /Recordings/{sid} — get call recording
Cloud Test Execution — TestMu AI HyperExecute
🔗 Official API Docs: https://www.testmuai.com/support/api-doc/?key=hyperexecute
HyperExecute is an AI-native test orchestration platform. Use these endpoints when the user is building CI/CD integrations or test dashboards:
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.
- 11d ago First seen · 179 lines · 163 tokens per session scan A 75b247982efd
api-fetcher-specific-domains is a skill published in the GitHub repository LambdaTest/agent-skills (366 stars, last pushed 1mo ago), licensed MIT. It adds 163 tokens to every session and 1,381 once invoked, about $0.0008 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.
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