prd-start

prd-start is a command for Claude Code from assafkip/kipi-system. It costs 17 tokens per session (340 once invoked), scanned A, original, MIT.

A command that starts a new product requirements document (PRD), a written plan for what to build and why, from a provided idea.

In plain words
What is it for?
Use it to create a dated PRD with a kebab-case identifier, then record the problem, goals, approach, risks, and open questions.
Why use it?
It prevents multiple PRDs or issues from being worked on at the same time and ensures the author fills in the key planning sections.

Command for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: positional $N argument.

Runs only inside its plugin — its command needs a path that Claude Code sets for a plugin’s own hooks and for nothing else. Install the plugin, not this.

Part of the prd-os plugin — 2 skills, 9 commands shipped together

Install

Getting it into your agent

This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.

Claude Code
/plugin marketplace add assafkip/kipi-system
Claude Code
/plugin install prd-os

Made for: Claude Code.

Or install prd-os, the plugin that ships this one along with the rest of its 2 skills, 9 commands.

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 prd-start

README.md
[![agentmods](https://agentmods.dev/badge/commands/assafkip/kipi-system/prd-start.svg)](https://agentmods.dev/commands/assafkip/kipi-system/prd-start)
Your own site
<a href="https://agentmods.dev/commands/assafkip/kipi-system/prd-start"><img src="https://agentmods.dev/badge/commands/assafkip/kipi-system/prd-start.svg" alt="Measured on agentmods" height="20"></a>
Per session 17 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 340 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 5.1 $0.00017 $0.00340
Opus 5 $0.00009 $0.00170
Sonnet 5 $0.00003 $0.00068
Haiku 4.5 $0.00002 $0.00034

Measured 6d ago against content hash 11b644365dcf, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

prd-start 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

  • prd-start — 88% identical, 2 lines differ
plugins/prd-os/commands/prd-start.md · 35 lines

What it actually says

Create a new PRD from the template. The slug becomes part of the PRD id (prd-<slug>-YYYY-MM-DD). Slug must be kebab-case.

The runner enforces two invariants:

  • No other PRD is active and non-archived.
  • No issue is active (cross-runner concurrency guard).

Run:

python3 "${CLAUDE_PLUGIN_ROOT}/scripts/prd_runner.py" new "$1" --owner "${2:-${USER:-unknown}}"

If the command exits non-zero, surface stderr verbatim. Do not retry. Common rejections:

  • slug format (not kebab-case)
  • active PRD (advise /prd-archive or clear)
  • active issue (advise closing the issue first)

After success, read the new PRD spec file to the author and ask them to fill in:

  • Problem (concrete, observed, measurable)
  • Goals and non-goals
  • Proposed approach
  • Risks and rollback
  • Open questions

The template already includes a ## Issues section with an empty [] JSON block. Author content into the existing sections; do not add a second ## Issues heading. The runner blocks advance when the body has more than one ## Issues heading.

Do not auto-draft PRD content. The PRD is the author's contract. Auto-drafting creates sycophantic PRDs that pass review because Claude agreed with itself.

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. 6d ago First seen · 35 lines · 17 tokens per session scan A 11b644365dcf

Subscribe to this mod's changes

prd-start is a command published in the GitHub repository assafkip/kipi-system (109 stars, last pushed today), licensed MIT. It adds 17 tokens to every session and 340 once invoked, about $0.0001 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.