handoff

The handoff stage of a PRD-to-task workflow, where a product requirements document is turned into an execution choice and user handoff. A PRD is a document describing what a product or feature should do.

In plain words
What is it for?
Use it after requirements and tasks have been generated to inspect available capabilities, recommend one execution mode, record the user's choice, and dispatch the next workflow.
Why use it?
It checks which execution tools are available and prevents work from proceeding without the required plan and a chosen execution mode.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/anombyte93/prd-taskmaster/handoff
Any agent
npx skills add anombyte93/prd-taskmaster --skill handoff
Clone the repo
git clone --depth 1 https://github.com/anombyte93/prd-taskmaster

Made for: Claude Code, Codex.

Per session 158 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,017 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00158 $0.05017
Opus 5 $0.00079 $0.02508
Sonnet 5 $0.00032 $0.01003
Haiku 4.5 $0.00016 $0.00502

Measured 2d ago against content hash efaba9fa17bd, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

handoff 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 2d 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.

skills/handoff/SKILL.md · 437 lines

How it starts

The opening of the file, as written. The whole thing — 437 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Phase 3: Handoff

Declarative phase skill. Invoked by the prd-taskmaster orchestrator when current_phase is HANDOFF. Never called directly by a user.

The one rule: detect what the user has, recommend ONE mode, give the user a structured choice, dispatch the chosen mode. Mode D executes only on tier=premium; otherwise it is a locked teaser.

Entry gate

  1. Call mcp__plugin_prd_go__check_gate(phase="HANDOFF", evidence={}) for diagnostics.

    check_gate is an EXIT gate: it requires user_mode_choice and plan_file_exists — both produced by HANDOFF itself, i.e. evidence to advance, not to enter. On first entry neither exists yet, so a gate_passed: false here is EXPECTED — the state machine's legal transitions already guarantee only legal entry.

    • First entry (no evidence yet): note the result and continue with the Procedure.
    • Re-entry: if the gate reports violations, report them and stop — it protects against re-running a completed phase or skipping ahead from GENERATE.
  2. Read the GENERATE outputs — .taskmaster/docs/prd.md, .taskmaster/tasks/tasks.json, .taskmaster/reports/task-complexity-report.json. If any are missing, report and stop. The gate should have caught this, but belt-and-braces.

Handoff checklist

Copy into your response before running the procedure:

HANDOFF CHECKLIST:
- [ ] Capabilities detected (tier + per-capability flags)
- [ ] Recommended mode: ___ (reason: ___)
- [ ] Summary displayed (spec location, task count, capabilities)
- [ ] CLAUDE.md task workflow appended (idempotent)
- [ ] AskUserQuestion mode picker surfaced (or prose fallback if hook-blocked)
- [ ] User choice dispatched (Mode A / B / C, or D when tier=premium)
- [ ] Debrief scaffold emitted (optional, silently tolerated)
- [ ] Handoff complete

Step 1: Detect capabilities

MCP (preferred): mcp__plugin_prd_go__detect_capabilities()

CLI fallback: python3 script.py detect-capabilities

Returns a tier field ("free" or "premium") plus per-capability flags. Key signals:

Read the full file on GitHub · 437 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. 2d ago First seen · 437 lines · 158 tokens per session scan A efaba9fa17bd

Subscribe to this mod's changes

handoff is a skill published in the GitHub repository anombyte93/prd-taskmaster (593 stars, last pushed 18d ago), licensed MIT. It adds 158 tokens to every session and 5,017 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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