Borrowing it
Nothing to install: this file belongs to apideck-libraries/api-skills. 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/apideck-libraries/api-skills/main/AGENTS.mdgit clone --depth 1 https://github.com/apideck-libraries/api-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/instructions/apideck-libraries/api-skills/agents-md)<a href="https://agentmods.dev/instructions/apideck-libraries/api-skills/agents-md"><img src="https://agentmods.dev/badge/instructions/apideck-libraries/api-skills/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/apideck-libraries/api-skills/agents-md"><img src="https://agentmods.dev/badge/instructions/apideck-libraries/api-skills/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 | $0.00975 | $0.00975 |
| Opus 5.5 | $0.00390 | $0.00390 |
| Sonnet 5.5 | $0.00195 | $0.00195 |
| Haiku 4.5 | $0.00097 | $0.00097 |
Grade A, and why
api-skills 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 1mo 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 — 101 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Agent Guidelines for Apideck API Skills
This repository contains AI agent skills for the Apideck Unified API. Follow these guidelines when contributing or modifying skills.
Repository Structure
skills/{skill-name}/
SKILL.md # Required: Agent instructions with YAML frontmatter
metadata.json # Required: Version, references, organization metadata
references/ # Optional: Detailed reference docs (loaded on demand)
scripts/ # Optional: Executable scripts
Provider mirrors (auto-generated via node skills/sync.js):
providers/{claude,cursor}/plugin/
skills/ # Mirror of skills/ (do not edit directly)
commands/ # Slash commands
.{provider}-plugin/ # Plugin configuration
Skill Authoring Rules
SKILL.md Requirements
- Frontmatter must include:
name,description,license,alwaysApply,metadata(withauthorandversion) namemust be kebab-case, match the directory name, and start withapideck-descriptionmust include trigger phrases — words/phrases that help agents decide when to activate the skillalwaysApplyshould befalsefor all skills (loaded only when contextually relevant)- SKILL.md body should stay under 500 lines. Move detailed content to
references/files - Code examples must use real Apideck SDK patterns with correct method signatures
- Doc links should point to
https://developers.apideck.com/for official docs
Progressive Disclosure (Context Efficiency)
Skills are loaded in tiers to minimize context window usage:
- Metadata (~100 tokens):
nameanddescriptionfrom frontmatter — loaded at startup for ALL installed skills - Instructions (< 5000 tokens): Full SKILL.md body — loaded when skill is activated
- References (as needed): Files in
references/— loaded only when agent needs specific details
Keep SKILL.md as a quick reference / index. Put detailed API endpoint docs, migration tables, and configuration references in separate files.
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.
- 1mo ago First seen · 101 lines · 975 tokens per session scan A 62e2db3dd8f1
api-skills AGENTS.md is an instructions file published in the GitHub repository apideck-libraries/api-skills (5 stars, last pushed 2d ago), licensed Apache-2.0. It adds 975 tokens to every session, about $0.0039 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.
Other instructions, from other repositories
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