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rocket: Skill for Claude Code

.agents/skills/to-prd/SKILL.md

to-prd is a skill for Claude Code, Codex from modernweb-dev/rocket. It costs 36 tokens per session (612 once invoked), scanned A, a copy of to-spec, MIT.

A requirements-writing guide that turns the current conversation and codebase understanding into a product requirements document, or PRD. A PRD describes the problem, proposed solution, and user needs for a piece of work.

In plain words
What is it for?
Use it to create a feature specification from an existing discussion, choose testing points in the code, and open the resulting PRD as a GitHub issue.
Why use it?
It gives an agent enough structured context to implement a feature and records where the feature should be tested. It also publishes the finished PRD to the project's issue tracker.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

This is modernweb-dev/rocket's own configuration. It tells Claude Code and Codex how to work on rocket 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 rocket configures →

not rated 395repo 8d ago A scan 36 tokens copy · 86% MIT
View source ↗ modernweb-dev/rocket rocket.modern-web.dev
Reuse

Borrowing it

Nothing to install: this file belongs to modernweb-dev/rocket. 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/modernweb-dev/rocket/main/.agents/skills/to-prd/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/modernweb-dev/rocket

Made for: Claude Code, Codex.

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 to-prd

README.md
[![agentmods](https://agentmods.dev/badge/skills/modernweb-dev/rocket/to-prd/github.svg)](https://agentmods.dev/skills/modernweb-dev/rocket/to-prd)
Your own site
<a href="https://agentmods.dev/skills/modernweb-dev/rocket/to-prd"><img src="https://agentmods.dev/badge/skills/modernweb-dev/rocket/to-prd/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.

agentmods 80×15 button for to-prd

Your own site · 80×15
<a href="https://agentmods.dev/skills/modernweb-dev/rocket/to-prd"><img src="https://agentmods.dev/badge/skills/modernweb-dev/rocket/to-prd.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 36 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 612 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 86% copy Near-identical to another mod 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 $0.00036 $0.00612
Opus 5.5 $0.00014 $0.00245
Sonnet 5.5 $0.00007 $0.00122
Haiku 4.5 $0.00004 $0.00061

Measured 2mo ago against content hash 5212dee3af6a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

to-prd 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 2mo 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.

Origin

This is a copy

86% identical to to-spec — 23 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.agents/skills/to-prd/SKILL.md · 75 lines

How it starts

The opening of the file, as written. The whole thing — 75 lines — stays where its author put it; the contents beside it link to each section on GitHub.

This skill takes the current conversation context and codebase understanding and produces a PRD. Do NOT interview the user — just synthesize what you already know.

The issue tracker and triage label vocabulary should have been provided to you — run /setup-matt-pocock-skills if not.

Process

  1. Explore the repo to understand the current state of the codebase, if you haven't already. Use the project's domain glossary vocabulary throughout the PRD, and respect any ADRs in the area you're touching.

  2. Sketch out the seams at which you're going to test the feature. Existing seams should be preferred to new ones. Use the highest seam possible. If new seams are needed, propose them at the highest point you can.

Check with the user that these seams match their expectations.

  1. Write the PRD using the template below, then publish it to the project issue tracker. Apply the ready-for-agent triage label - no need for additional triage.

Problem Statement

The problem that the user is facing, from the user's perspective.

Solution

The solution to the problem, from the user's perspective.

User Stories

A LONG, numbered list of user stories. Each user story should be in the format of:

  1. As an , I want a , so that

This list of user stories should be extremely extensive and cover all aspects of the feature.

Implementation Decisions

A list of implementation decisions that were made. This can include:

  • The modules that will be built/modified
  • The interfaces of those modules that will be modified
  • Technical clarifications from the developer
  • Architectural decisions
  • Schema changes
  • API contracts
  • Specific interactions

Do NOT include specific file paths or code snippets. They may end up being outdated very quickly.

Exception: if a prototype produced a snippet that encodes a decision more precisely than prose can (state machine, reducer, schema, type shape), inline it within the relevant decision and note briefly that it came from a prototype. Trim to the decision-rich parts — not a working demo, just the important bits.

Read the full file on GitHub · 75 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. 2mo ago First seen · 75 lines · 36 tokens per session scan A 5212dee3af6a

Subscribe to this mod's changes

to-prd is a skill published in the GitHub repository modernweb-dev/rocket (395 stars, last pushed 8d ago), licensed MIT. It adds 36 tokens to every session and 612 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 86% identical to to-spec, differing in 23 lines, and is treated as a copy.

PlanningProject managementeleventyhacktoberfestmodern-webrollupstatic-site-generatorweb-components
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