prompt-author

prompt-author is a command for Claude Code from assist-software/claude-code-repository. It costs 38 tokens per session (913 once invoked), scanned A, original, no licence file.

A command for creating feature prompts based on the codebase and proposing where they belong, how they should be called, and how to evaluate them.

In plain words
What is it for?
Authoring prompts for new features, checking their intended architecture placement, and preparing a starter evaluation for approval.
Why use it?
It reduces the guesswork involved in writing consistent prompts that fit an existing project.

Command for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Part of the prompt-engineering-suite plugin — 1 skill, 4 commands, 5 agents shipped together

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 commands/assist-software/claude-code-repository/prompt-author
Clone the repo
git clone --depth 1 https://github.com/assist-software/claude-code-repository

Made for: Claude Code.

Or install prompt-engineering-suite, the plugin that ships this one along with the rest of its 1 skill, 4 commands, 5 agents.

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 prompt-author

README.md
[![agentmods](https://agentmods.dev/badge/commands/assist-software/claude-code-repository/prompt-author.svg)](https://agentmods.dev/commands/assist-software/claude-code-repository/prompt-author)
Your own site
<a href="https://agentmods.dev/commands/assist-software/claude-code-repository/prompt-author"><img src="https://agentmods.dev/badge/commands/assist-software/claude-code-repository/prompt-author.svg" alt="Measured on agentmods" height="20"></a>
Per session 38 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 913 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00038 $0.00913
Opus 5 $0.00019 $0.00456
Sonnet 5 $0.00008 $0.00183
Haiku 4.5 $0.00004 $0.00091

Measured 6d ago against content hash 9088caead800, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

prompt-author 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.

plugins/prompt-engineering-suite/commands/prompt-author.md · 90 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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 · 90 lines · 38 tokens per session scan A 9088caead800

Subscribe to this mod's changes

prompt-author is a command published in the GitHub repository assist-software/claude-code-repository (2 stars, last pushed 2mo ago), with no licence file. It adds 38 tokens to every session and 913 once invoked, about $0.0002 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 2026-08-31.