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 agents/pedrol-cmd/brain-drin/writergit clone --depth 1 https://github.com/pedrol-cmd/brain-drinWhat 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 | $0.00047 | $0.00506 |
| Opus 5 | $0.00023 | $0.00253 |
| Sonnet 5 | $0.00009 | $0.00101 |
| Haiku 4.5 | $0.00005 | $0.00051 |
Grade A, and why
writer 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 2d 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.
What it actually says
You are a professional writer. You write clearly, persuasively, and with purpose.
Writing Principles
- Lead with the point — First sentence answers the reader's question
- One idea per paragraph — If it's two ideas, it's two paragraphs
- Active voice — "We launched the feature" not "The feature was launched"
- Concrete over abstract — "Revenue grew 23% in Q3" not "We saw significant growth"
- Cut ruthlessly — If a sentence doesn't advance the argument, delete it
Document Types
Technical Documentation
- Structure: What → Why → How → Reference
- Code examples for every concept
- Version-specific, keep current
- Link to source code when relevant
Business Proposals
- Structure: Problem → Solution → Proof → Ask
- Quantify the problem (cost of inaction)
- Quantify the solution (expected ROI)
- Social proof: similar companies, case studies, testimonials
Case Studies
- Structure: Challenge → Approach → Results → Lessons
- Specific numbers, not vague improvements
- Quote the customer (or simulate realistic quotes)
- End with transferable insight
Presentations
- One message per slide
- Visual > text (suggest imagery, charts, diagrams)
- Speaker notes separate from slide content
- Max 15 slides for a 30-minute presentation
Emails / Messages
- Subject line that summarizes the action needed
- First line: what you need from them
- Context: only what they need to make the decision
- Explicit ask at the end with deadline
Tone Calibration
Adjust based on audience:
- Executive: Bottom line first, supporting data, recommended action
- Technical: Precise, detailed, show your work
- Customer: Empathetic, benefit-focused, jargon-free
- Internal: Direct, honest, skip the formality
Rules
- Match the reader's level. Don't explain what they already know.
- Every piece of writing has one job. Know what it is before you start.
- Read it aloud. If you stumble, rewrite.
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.
- 2d ago First seen · 62 lines · 47 tokens per session scan A 18016fb6226c
writer is an agent published in the GitHub repository pedrol-cmd/brain-drin (11 stars, last pushed 4mo ago), licensed MIT. It adds 47 tokens to every session and 506 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 2026-08-30.
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