prd

A requirements-writing assistant that turns a conversation about a feature into a Product Requirements Document, or PRD—a structured description of the problem, solution, user needs, and acceptance checks.

In plain words
What is it for?
Use it before planning work when requirements came from a conversation, user story, or feature discussion.
Why use it?
It turns informal discussion into a clear specification that can guide later implementation and testing.

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/datit309/supergraph/prd
Any agent
npx skills add datit309/supergraph --skill prd
Clone the repo
git clone --depth 1 https://github.com/datit309/supergraph

Made for: Claude Code, Codex.

Per session 51 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 765 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 $0.00051 $0.00765
Opus 5 $0.00026 $0.00382
Sonnet 5 $0.00010 $0.00153
Haiku 4.5 $0.00005 $0.00076

Measured yesterday against content hash c2c79e008f2d, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

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 yesterday.

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/supergraph/skills/prd/SKILL.md · 119 lines

How it starts

The opening of the file, as written. The whole thing — 119 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/supergraph:prd

Turn conversation into a machine-readable PRD. Gives /supergraph:plan a concrete spec to work from.

Announce: "📋 /supergraph:prd — extracting requirements..."

Steps

1. Read CONTEXT.md (if exists)

head -60 CONTEXT.md 2>/dev/null || echo "No CONTEXT.md"

Use domain vocabulary from CONTEXT.md in the PRD — never invent new terms for existing concepts.

2. Extract requirements from conversation

Gather from current conversation context:

  • What the user wants to accomplish
  • Any constraints or non-goals mentioned
  • Technical decisions already made
  • Edge cases or concerns raised

Ask one clarifying question if a critical piece is missing. Do not ask multiple questions at once.

3. Write PRD

# PRD: [Feature/Fix Name]

## Problem
[One paragraph: what is broken or missing, and why it matters]

## Solution
[One paragraph: the approach — what will be built]

## User Stories
- As a [role], I want [action] so that [outcome]
- (2-5 stories max)

## Acceptance Criteria
- [ ] [Observable, testable condition]
- [ ] [Observable, testable condition]
- (Each maps to a test in /supergraph:plan)

## Implementation Decisions
- [Technology/pattern chosen and why]
- [What was explicitly ruled out and why]

## Testing Decisions
- [Unit: what gets unit tested]
- [Integration: what needs integration tests]
- [E2E: what needs Playwright coverage, if any]

## Out of Scope
- [Explicitly not included in this work]

## Notes
- [Domain terms: add to CONTEXT.md if new]
- [Dependencies on other work]
- [Security considerations]

4. Present for approval

Show PRD to user. Ask: "Does this capture what you need? [yes / adjust]"

Incorporate feedback, re-present if needed.

5. Post to GitHub Issues (optional)

If user confirms and repo has GitHub remote:

gh issue create \
  --title "[PRD] <feature name>" \
  --body "$(cat <<'EOF'
[PRD content]
EOF
)" \
  --label "enhancement,ready-for-agent"

Report issue URL.

6. Save locally

Read the full file on GitHub · 119 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. yesterday First seen · 119 lines · 51 tokens per session scan A c2c79e008f2d

Subscribe to this mod's changes

prd is a skill published in the GitHub repository datit309/supergraph (21 stars, last pushed 4d ago), licensed MIT. It adds 51 tokens to every session and 765 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 2026-08-30.

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