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 asfbay-bit/opchain-skills --skill oc-claude-apigit clone --depth 1 https://github.com/asfbay-bit/opchain-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/asfbay-bit/opchain-skills/oc-claude-api)<a href="https://agentmods.dev/skills/asfbay-bit/opchain-skills/oc-claude-api"><img src="https://agentmods.dev/badge/skills/asfbay-bit/opchain-skills/oc-claude-api/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/asfbay-bit/opchain-skills/oc-claude-api"><img src="https://agentmods.dev/badge/skills/asfbay-bit/opchain-skills/oc-claude-api.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 | $0.00105 | $0.04451 |
| Opus 5 | $0.00053 | $0.02226 |
| Sonnet 5 | $0.00021 | $0.00890 |
| Haiku 4.5 | $0.00011 | $0.00445 |
Grade A, and why
oc-claude-api 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 6d 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 — 369 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Claude API
On first invocation, read references/orchestrator.md and follow its welcome protocol.
First-party harness for building, debugging, and optimizing applications on the Claude API / Anthropic SDK. Owns model routing, prompt caching (on by default), tool-use design, batch/streaming patterns, and version-migration playbooks. Apps built or touched through this skill ship prompt caching from the first commit and carry token-ceiling guardrails per phase.
This is the Claude-in-the-loop counterpart to the rest of the pipeline. If
you're building an LLM feature — a chatbot, an extraction pipeline, an agent, an
LLM judge — this skill owns the request layer: which model, how it's cached, how
tools are wired, and how the code moves when a model version bumps. It does not
own agent topology or harness loops (that's oc-agent-forge), retrieval
(oc-rag-forge), or prompt versioning + eval datasets (oc-prompt-ops). It owns
the Claude API surface those skills build on.
Accuracy contract. Model IDs, prices, parameters, and breaking changes in this skill and its reference docs are sourced from the bundled
claude-apiskill, not from memory. When in doubt about a model ID, a price, a beta header, or a deprecated parameter, invokeclaude-api(or read itsshared/files) rather than inventing one. The most recent models are Fable 5 (claude-fable-5), Opus 4.8 (claude-opus-4-8), Sonnet 4.6 (claude-sonnet-4-6), and Haiku 4.5 (claude-haiku-4-5).
How This Skill Fits the Build Pipeline
APP-ARCHITECT (planning) TRI-DEV (building)
Phase 2: Spec ──"AI app?"──▶ oc-claude-api model-routing decision tree
│ writes 05-llm-design.md
Phase 5: Scaffold ──auto-calls──▶ oc-claude-api request-layer scaffold
│ (caching + token ceilings baked in)
▼
oc-agent-forge (topology/loop) ──reads model routing──┐
oc-rag-forge (retrieval) ──reads model routing──┤
oc-prompt-ops (eval/versioning)──reads model routing──┘
What ships with it
6 files 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.
- 6d ago Changed 1fdd59dc9fc4
- 9d ago First seen · 369 lines · 105 tokens per session scan A 6f2409cf893d
oc-claude-api is a skill published in the GitHub repository asfbay-bit/opchain-skills (0 stars, last pushed 5d ago), licensed Apache-2.0. It adds 105 tokens to every session and 4,451 once invoked, about $0.0005 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 2026-08-31.
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