claude-forge: Skill for Claude Code

.claude/skills/forge-voice/SKILL.md

forge-voice is a skill for Claude Code from ForgeyClap/claude-forge. It costs 56 tokens per session (1,304 once invoked), scanned A, original, MIT.

A guide for building spoken phone agents that listen and respond during live calls, including reception, booking, and callback workflows.

In plain words
What is it for?
It helps design Dutch-first voice calls, turn-taking, interruption handling, speech recognition and speech output, and fallback behavior for knowledge answers.
Why use it?
It addresses the special safety and timing problems of voice conversations, where callers cannot reread messages and may interrupt the agent.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is ForgeyClap/claude-forge's own configuration. It tells Claude Code how to work on claude-forge itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything claude-forge configures →

Reuse

Borrowing it

Nothing to install: this file belongs to ForgeyClap/claude-forge. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/ForgeyClap/claude-forge/main/.claude/skills/forge-voice/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/ForgeyClap/claude-forge

Made for: Claude Code.

Wrote this? Show the measurements

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agentmods badge for forge-voice

README.md
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<a href="https://agentmods.dev/skills/forgeyclap/claude-forge/forge-voice"><img src="https://agentmods.dev/badge/skills/forgeyclap/claude-forge/forge-voice.svg" alt="Measured on agentmods" height="20"></a>
Per session 56 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,304 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.
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 $0.00056 $0.01304
Opus 5 $0.00028 $0.00652
Sonnet 5 $0.00011 $0.00261
Haiku 4.5 $0.00006 $0.00130

Measured 4d ago against content hash 7d58f70e86ae, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

forge-voice 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 4d 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.

.claude/skills/forge-voice/SKILL.md · 43 lines

How it starts

The opening of the file, as written. The whole thing — 43 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Forge playbook — AI voice / phone agent

A voice agent is a real-time, spoken, one-shot channel — the honesty + safety rules matter more than usual because a caller can't scroll back. RAG/knowledge answers defer to forge-rag (source-grounded, honest fallback); notifications/e-mail after a call defer to forge-integration (draft-gated, idempotent). Forge context: Dutch client phone agents (booking / reception / callback).

Hard rules

  • Dutch-first when configured for a Dutch client. The caller-facing conversation is Dutch (natural, spoken Dutch — not translated-English cadence); female/Dutch voice when the owner asks. Code/comments stay English. Confirm language + voice per project.
  • One question at a time. Ask a single question, wait, listen, then proceed — never stack multiple asks in one turn. Keep prompts short and spoken-natural; design the call as a small set of workflow states, each with one job to do.
  • Natural turn-taking + barge-in. The caller can interrupt; the agent stops speaking within ~200ms of a real interruption. Keep voice-to-voice latency tight (aim well under ~1s). Handle endpointing / silence gracefully; short, polite closing phrases; no endless loop — end the call cleanly.
  • AI disclosure + recording consent (EU/NL). Disclose clearly and early that the caller is speaking with an AI (EU AI Act Art. 50, in force Aug 2026). If the call is recorded, get a valid, specific, informed basis — a vague "this call may be recorded" is not enough under GDPR/AVG; record the legal basis. Honour opt-out immediately.
  • One email per call maximum; idempotency before any notification. At most one outbound email per call, sent only after an idempotency check (a retry/duplicate turn must not fire a second mail). Consent-aware lead capture only.
  • No outbound calls and no SMS without explicit owner approval. Inbound answering is the default safe mode; outbound dialing, SMS, and any customer traffic are owner-gated, irreversible actions. No autonomous dialing.
  • Honest fallback — no hallucinated business facts. If the agent doesn't know (price, availability, policy), it says so and offers a human handoff / callback — never invents a business answer on a live call. Secrets (telephony/LLM keys) in env only.

Read the full file on GitHub · 43 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. 4d ago First seen · 43 lines · 56 tokens per session scan A 7d58f70e86ae

Subscribe to this mod's changes

forge-voice is a skill published in the GitHub repository ForgeyClap/claude-forge (2 stars, last pushed 1mo ago), licensed MIT. It adds 56 tokens to every session and 1,304 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.