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authoring-prds

authoring-prds is a skill for Claude Code from ihistand/claude-plugins. It costs 114 tokens per session (7,781 once invoked), scanned A, original, no licence file.

A workflow for writing a product requirements document (PRD) before building a product, service, or group of features. It records agreements, contracts, and test cases in a PRD folder.

In plain words
What is it for?
It interviews the user, creates or resumes a PRD, and documents requirements and tests for agents to build, test, and deploy from.
Why use it?
It turns an idea into written requirements that developers and coding agents can use before implementation begins.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

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-toolkit plugin — 9 skills, 10 commands, 2 agents, 1 hook shipped together

not rated 2repo changed today A scan 114 tokens no licence

Good fit It interviews the user, creates or resumes a PRD, and documents requirements and tests for agents to build, test, and deploy from.

Compare 6 skills from other repositories ↓
View source ↗ ihistand/claude-plugins
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 ihistand/claude-plugins
Claude Code
/plugin install prd-toolkit

Made for: Claude Code.

Or install prd-toolkit, the plugin that ships this one along with the rest of its 9 skills, 10 commands, 2 agents, 1 hook.

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 authoring-prds

README.md
[![agentmods](https://agentmods.dev/badge/skills/ihistand/claude-plugins/authoring-prds/github.svg)](https://agentmods.dev/skills/ihistand/claude-plugins/authoring-prds)
Your own site
<a href="https://agentmods.dev/skills/ihistand/claude-plugins/authoring-prds"><img src="https://agentmods.dev/badge/skills/ihistand/claude-plugins/authoring-prds/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 authoring-prds

Your own site · 80×15
<a href="https://agentmods.dev/skills/ihistand/claude-plugins/authoring-prds"><img src="https://agentmods.dev/badge/skills/ihistand/claude-plugins/authoring-prds.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 114 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 7,781 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 unknown 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 $0.00114 $0.07781
Opus 5.5 $0.00046 $0.03112
Sonnet 5.5 $0.00023 $0.01556
Haiku 4.5 $0.00011 $0.00778

Measured today against content hash b829cf88f6ea, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

authoring-prds 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 today.

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.

prd-toolkit/skills/authoring-prds/SKILL.md · 325 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. today Changed · +7 lines b829cf88f6ea
  2. 2d ago Changed · +8 lines 447de9d63f67
  3. 5d ago Changed · +69 lines 40b1e1f8fc65
  4. 6d ago Changed · +9 lines e94596fd2fe0
  5. 7d ago Changed · +23 lines a2e98110c54e
  6. 9d ago First seen · 209 lines · 114 tokens per session scan A 40cdfab86dd5

Subscribe to this mod's changes

authoring-prds is a skill published in the GitHub repository ihistand/claude-plugins (2 stars, last pushed today), with no licence file. It adds 114 tokens to every session and 7,781 once invoked, about $0.0005 per session on Opus 5.5. 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 2026-10-31.

PlanningWriting and docs
Related

authoring-prds compared with skills from other repositories

authoring-prds next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
authoring-prdsihistand/claude-pluginsSkill2todaynoneA114Claude Code
imagegenopenai/codexSkill134ktodayApache-2.0A113Codex
local-ai-agentsmicrosoft/ai-agents-for-beginnersSkill79k2d agoMITA200Claude Code, Codex
playwright-climicrosoft/playwrightSkill100ktodayApache-2.0A19Claude Code
browser-automationopenclaw/openclawSkill394ktodayMITA36Claude Code
systematic-debuggingobra/superpowersSkill315k5d agoMITA21Claude Code
next-cache-components-adoptionvercel/next.jsSkill143kyesterdayMITA95Claude Code