api-state

api-state is a skill for Claude Code from Jamie-BitFlight/claude_skills. It costs 57 tokens per session (931 once invoked), scanned A, original, MIT.

A research worker that checks the current syntax, documentation changes, and breaking changes for a named software library or protocol version. It uses the library's authoritative documentation rather than relying on memory.

In plain words
What is it for?
It helps verify method and class signatures, decorators, version changes, and other details of a specific API.
Why use it?
It helps avoid using outdated APIs or missing changes between versions. It also identifies when the requested technology, version, or API area is not specific enough to research.

Skill for Claude Code

Written for Claude Code: $ARGUMENTS substitution.

Part of the dh plugin — 53 skills, 28 agents shipped together

Good fit It helps verify method and class signatures, decorators, version changes, and other details of a specific API.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/jamie-bitflight/claude_skills/api-state
Install

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.

Any agent
npx skills add Jamie-BitFlight/claude_skills --skill api-state
Clone the repo
git clone --depth 1 https://github.com/Jamie-BitFlight/claude_skills

Made for: Claude Code.

Or install dh, the plugin that ships this one along with the rest of its 53 skills, 28 agents.

Wrote 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.

agentmods badge for api-state

README.md
[![agentmods](https://agentmods.dev/badge/skills/jamie-bitflight/claude_skills/api-state.svg)](https://agentmods.dev/skills/jamie-bitflight/claude_skills/api-state)
Your own site
<a href="https://agentmods.dev/skills/jamie-bitflight/claude_skills/api-state"><img src="https://agentmods.dev/badge/skills/jamie-bitflight/claude_skills/api-state.svg" alt="Measured on agentmods" height="20"></a>
Per session 57 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 931 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00057 $0.00931
Opus 5 $0.00028 $0.00465
Sonnet 5 $0.00011 $0.00186
Haiku 4.5 $0.00006 $0.00093

Measured 3d ago against content hash 643660179422, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

api-state 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 3d 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.

plugins/development-harness/skills/api-state/SKILL.md · 114 lines

How it starts

The opening of the file, as written. The whole thing — 114 lines — stays where its author put it; the contents beside it link to each section on GitHub.

API State

One research angle in a multi-angle technical research system. Singular focus: current API syntax, changelog, and breaking changes for a specific library or protocol version.

Runs independently. No shared state with other research angles during execution. Return all findings as content — do not write to any backlog item.

Workflow

Step 1 — Scope

Research target received from orchestrator:

$ARGUMENTS

Confirm the technology name, version, and specific API surface before proceeding. If any are missing or ambiguous, state the gap and output:

STATUS: BLOCKED Reason: [missing field] — cannot proceed without [technology name | version | API surface].

Step 2 — Current API State

Fetch the primary documentation page for the technology. Use mcp__Ref__ref_search_documentation to locate the canonical docs URL, then mcp__Ref__ref_read_url to retrieve the page. If the library is not indexed by Ref, use context7 (mcp__context7__resolve-library-id then mcp__context7__query-docs). Derive the URL from the confirmed scope — do not rely on training data for the URL or for version-specific syntax.

Extract and record:

  • Exact method/class/decorator signatures
  • All parameter forms (required, optional, typed, variadic)
  • Return types and async behaviour
  • Context injection patterns (if applicable to the technology)
  • Any configuration or initialization requirements

Cite each item with the source URL and access date.

Step 3 — Changelog

Fetch the raw changelog. Locate it at the canonical path for the technology — commonly CHANGELOG.md or CHANGES.md in the GitHub repository, or the GitHub Releases page. Use mcp__Ref__ref_read_url for the changelog URL. Fall back to WebFetch for raw GitHub URLs not served by Ref.

Extract all entries relevant to the API surface confirmed in Step 1, version by version. Cite each entry with its version number and source URL.

If the changelog is absent or the relevant entries are not present, state this explicitly: "Changelog not found at [URLs attempted]" or "No changelog entries for [API surface] found in versions [range searched]."

Read the full file on GitHub · 114 lines

Changes

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.

  1. 3d ago First seen · 114 lines · 57 tokens per session scan A 643660179422

Subscribe to this mod's changes

api-state is a skill published in the GitHub repository Jamie-BitFlight/claude_skills (66 stars, last pushed today), licensed MIT. It adds 57 tokens to every session and 931 once invoked, about $0.0003 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 2026-09-03.

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