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.
git clone --depth 1 https://github.com/joaquimscosta/arkhe-claude-pluginsWrote 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.
[](https://agentmods.dev/commands/joaquimscosta/arkhe-claude-plugins/create-prd)<a href="https://agentmods.dev/commands/joaquimscosta/arkhe-claude-plugins/create-prd"><img src="https://agentmods.dev/badge/commands/joaquimscosta/arkhe-claude-plugins/create-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.
<a href="https://agentmods.dev/commands/joaquimscosta/arkhe-claude-plugins/create-prd"><img src="https://agentmods.dev/badge/commands/joaquimscosta/arkhe-claude-plugins/create-prd.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00012 | $0.01246 |
| Opus 5.5 | $0.00005 | $0.00498 |
| Sonnet 5.5 | $0.00002 | $0.00249 |
| Haiku 4.5 | $0.00001 | $0.00125 |
Grade A, and why
create-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.
How it starts
The opening of the file, as written. The whole thing — 183 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Create PRD Command
Interactive wizard to create a Product Requirements Document and set up your project for Ralph.
Usage
/create-prd # Start interactive wizard
/create-prd "Build a todo app" # Start with description
What It Does
- Asks for task set name (default: "initial")
- Asks discovery questions about your project
- Generates task list in
.ralph/tasksets/{name}/tasks.json - Creates PRD in
.ralph/tasksets/{name}/prd.md - Creates memories file in
.ralph/tasksets/{name}/memories.md - Creates PROMPT.md with iteration instructions
- Copies ralph.sh loop runner script
- Creates symlink
.ralph/current-taskset
Discovery Questions
Ask 10 discovery questions (task set name, problem, audience, features, tech stack, architecture, UI/UX, auth, integrations, success criteria). See the ralph-prd skill's WORKFLOW.md for question details and good answer examples.
Output Files
See the ralph-prd skill's SKILL.md "What It Creates" section for the full directory structure. Use templates/ for generating each file.
Implementation
When the user runs /create-prd:
Step 1: Ask for task set name
## Task Set Name
What would you like to name this task set?
Examples: "initial", "auth-feature", "test-coverage"
(Default: "initial" if you press Enter)
Validate the name:
- Lowercase only
- Alphanumeric and hyphens only
- No spaces
Step 2: Check for existing setup
TASKSET_NAME="${1:-initial}"
if [[ -d ".ralph/tasksets/${TASKSET_NAME}" ]]; then
echo "Task set '${TASKSET_NAME}' already exists."
echo "Run /ralph taskset switch ${TASKSET_NAME} to use it."
echo "Or choose a different name."
exit 0
fi
Step 3: Run discovery questions
Use AskUserQuestion tool for each discovery step:
## Discovery: Problem Definition
What problem are you solving with this project?
(Describe the pain point you're addressing)
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.
- yesterday First seen · 183 lines · 12 tokens per session scan A c3bd88901af1
create-prd is a command published in the GitHub repository joaquimscosta/arkhe-claude-plugins (21 stars, last pushed yesterday), licensed MIT. It adds 12 tokens to every session and 1,246 once invoked, about $0.0000 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 2026-10-16.
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p4-backlog
Breaks down the features from FEATURES.md into actionable tasks, builds the prioritized backlog, and defines milestones and release planning. The result is BACKLOG.md and PROJECTPLAN.md as the steering foundation for the entire implementation.