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 skills add viktorbezdek/skillstack --skill structured-writinggit clone --depth 1 https://github.com/viktorbezdek/skillstackWrote 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/skills/viktorbezdek/skillstack/structured-writing)<a href="https://agentmods.dev/skills/viktorbezdek/skillstack/structured-writing"><img src="https://agentmods.dev/badge/skills/viktorbezdek/skillstack/structured-writing/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/skills/viktorbezdek/skillstack/structured-writing"><img src="https://agentmods.dev/badge/skills/viktorbezdek/skillstack/structured-writing.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 | $0.00127 | $0.01405 |
| Opus 5.5 | $0.00051 | $0.00562 |
| Sonnet 5.5 | $0.00025 | $0.00281 |
| Haiku 4.5 | $0.00013 | $0.00140 |
Grade A, and why
structured-writing 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 1mo 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 — 133 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Structured Writing
Most writing fails by burying the point. A structured document leads with the conclusion, supports it with grouped evidence, and lets the reader stop reading the moment they have what they need.
Pick a structure
| Structure | Best for | Lead |
|---|---|---|
| BLUF (Bottom Line Up Front) | Emails, status updates, requests | The ask or the answer |
| Minto Pyramid | Reports, strategy memos, analyses | The single governing thought |
| Inverted pyramid | News-style updates, announcements | The headline fact |
| SPQR (Situation-Problem-Question-Resolution) | Briefs, consulting narratives | The situation, built to the ask |
Pick by reader, not by habit. A busy executive needs BLUF; a peer reviewing analysis needs a pyramid; a team reading an announcement needs inverted pyramid.
BLUF — the default for async work
A BLUF message opens with: the ask, the answer, or the conclusion — in under 30 words — followed by supporting detail the reader can skip.
BLUF: [ask / decision / answer in one sentence]
Why it matters:
- [reason 1 in ≤12 words]
- [reason 2]
Details (only if the BLUF doesn't answer their question):
- [supporting fact with number]
- [supporting fact with reference]
What I need from you:
- [explicit ask with deadline] or "FYI — no action needed."
Rules:
- The subject line is the BLUF, compressed.
- The BLUF sentence is self-contained — it must make sense without the rest.
- If someone replies from the first 30 words, the message worked.
Full worked examples and email/Slack/standup templates in references/bluf-templates.md.
The Minto Pyramid
Barbara Minto's pyramid: every document has one governing thought, supported by 3-5 grouped arguments, each supported by evidence.
Governing thought
(what + why + so-what)
|
┌───────────────┼───────────────┐
Argument 1 Argument 2 Argument 3
| | |
Evidence Evidence Evidence
What ships with it
5 files 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.
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.
- 1mo ago First seen · 133 lines · 127 tokens per session scan A a0fc304641ad
structured-writing is a skill published in the GitHub repository viktorbezdek/skillstack (14 stars, last pushed 4mo ago), licensed MIT. It adds 127 tokens to every session and 1,405 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 2026-08-30.
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