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.
npx agentmods add commands/kid-sid/claude-spellbook/prdgit clone --depth 1 https://github.com/kid-sid/claude-spellbookWrote 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/kid-sid/claude-spellbook/prd)<a href="https://agentmods.dev/commands/kid-sid/claude-spellbook/prd"><img src="https://agentmods.dev/badge/commands/kid-sid/claude-spellbook/prd.svg" alt="Measured on agentmods" 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 | $0.00000 | $0.00813 |
| Opus 5 | $0.00000 | $0.00407 |
| Sonnet 5 | $0.00000 | $0.00163 |
| Haiku 4.5 | $0.00000 | $0.00081 |
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 4d 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.
How it starts
The opening of the file, as written. The whole thing — 115 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Generate a Product Requirements Document (PRD) pre-filled from context.
Instructions
-
Ask the user (if not already specified):
- Feature/product name: what is being built?
- Problem statement: what user pain point does this solve?
- Target users: who is this for?
-
Generate the PRD using this template:
# PRD: {Feature/Product Name}
**Author:** {name}
**Date:** {YYYY-MM-DD}
**Status:** Draft | In Review | Approved
**Priority:** P0 (Critical) | P1 (High) | P2 (Medium) | P3 (Low)
## 1. Problem Statement
{What problem are we solving? Why does it matter? Include data/evidence if available.}
## 2. Goals & Success Metrics
| Goal | Metric | Target |
|------|--------|--------|
| {goal 1} | {metric} | {target value} |
| {goal 2} | {metric} | {target value} |
### Non-Goals (Explicit Exclusions)
- {thing we are deliberately NOT doing and why}
## 3. User Stories
### Primary Persona: {name/role}
- As a {role}, I want to {action} so that {benefit}
- As a {role}, I want to {action} so that {benefit}
### Secondary Persona: {name/role}
- As a {role}, I want to {action} so that {benefit}
## 4. Functional Requirements
### Must Have (P0)
- [ ] {requirement}
- [ ] {requirement}
### Should Have (P1)
- [ ] {requirement}
### Nice to Have (P2)
- [ ] {requirement}
## 5. Non-Functional Requirements
| Category | Requirement |
|----------|------------|
| Performance | {e.g., API response < 200ms at p99} |
| Scalability | {e.g., support 10K concurrent users} |
| Security | {e.g., SOC2 compliant, encrypted at rest} |
| Availability | {e.g., 99.9% uptime SLA} |
| Accessibility | {e.g., WCAG 2.1 AA compliant} |
## 6. User Flow
{Describe the primary user flow step by step, or include a diagram reference}
1. User {action}
2. System {response}
3. User {action}
4. System {response}
## 7. Technical Considerations
### Dependencies
- {external service or team dependency}
### Risks & Mitigations
| Risk | Impact | Likelihood | Mitigation |
|------|--------|-----------|------------|
| {risk} | High/Med/Low | High/Med/Low | {mitigation} |
### Open Questions
- [ ] {question that needs resolution}
## 8. Timeline & Milestones
| Milestone | Target Date | Description |
|-----------|------------|-------------|
| Design Complete | {date} | {description} |
| MVP / Alpha | {date} | {description} |
| Beta | {date} | {description} |
| GA | {date} | {description} |
## 9. Appendix
### Related Documents
- {link to design doc}
- {link to ADR}
- {link to competitive analysis}
-
Pre-fill sections by:
- Reading the codebase to understand existing architecture
- Checking git history for related work
- Inferring technical constraints from the stack
-
Save the file to
docs/prd/{kebab-case-name}.md(create directory if needed).
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.
- 4d ago First seen · 115 lines · 0 tokens per session scan A 9ab6bc4288bd
prd is a command published in the GitHub repository kid-sid/claude-spellbook (187 stars, last pushed 29d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 813 tokens. 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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