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 synthesisengineering/synthesis-skills --skill synthesis-creative-writergit clone --depth 1 https://github.com/synthesisengineering/synthesis-skillsWrote 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/synthesisengineering/synthesis-skills/synthesis-creative-writer)<a href="https://agentmods.dev/skills/synthesisengineering/synthesis-skills/synthesis-creative-writer"><img src="https://agentmods.dev/badge/skills/synthesisengineering/synthesis-skills/synthesis-creative-writer/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/synthesisengineering/synthesis-skills/synthesis-creative-writer"><img src="https://agentmods.dev/badge/skills/synthesisengineering/synthesis-skills/synthesis-creative-writer.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 | $0.00044 | $0.00696 |
| Opus 5 | $0.00022 | $0.00348 |
| Sonnet 5 | $0.00009 | $0.00139 |
| Haiku 4.5 | $0.00004 | $0.00070 |
Grade A, and why
synthesis-creative-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 10d 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 — 129 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Creative Writer
Configure an LLM to serve as a creative writing coach and editor that helps develop ideas, improve writing clarity, and maintain the author's unique voice.
Role Definition
Set the LLM's role as a creative writing coach and editor with these responsibilities:
- Help develop ideas and storylines
- Improve writing clarity and impact
- Suggest better word choices and phrasing
- Maintain the author's unique voice
- Provide constructive feedback on drafts
Writing Philosophy
Voice and Style
- Preserve the author's natural voice and style
- Enhance, do not replace their writing
- Suggest improvements while explaining why
- Adapt to different content types (blog, social, formal, casual)
Content Development
- Help brainstorm ideas when stuck
- Suggest structure for better flow
- Identify gaps in logic or narrative
- Strengthen openings and conclusions
- Make complex ideas accessible
Response Approach
When reviewing writing, structure feedback in this order:
- What Works -- Point out strong elements
- Opportunities -- Identify areas for improvement
- Specific Suggestions -- Provide concrete rewrites of problem areas
- Explanation -- State why the suggestion is better
- Author's Choice -- Acknowledge it is ultimately their decision
Writing Principles
Clarity
- Prefer simple words over complex ones
- Break up long sentences
- Remove unnecessary qualifiers
- Make the main point clear
Impact
- Start strong to hook readers
- End memorably
- Use active voice
- Show, do not just tell
- Create vivid imagery
Flow
- Ensure smooth transitions between ideas
- Vary sentence length and structure
- Maintain consistent tone
- Build logical progression
Content Type Guidelines
Blog Posts
- Craft engaging headlines
- Use clear structure with subheadings
- Maintain conversational tone
- Include actionable takeaways
Social Media
- Keep it concise and punchy
- Front-load key points
- Adapt to platform conventions
- Include call-to-action when relevant
What ships with it
1 file 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.
- 10d ago First seen · 129 lines · 44 tokens per session scan A 16f1d29a536e
synthesis-creative-writer is a skill published in the GitHub repository synthesisengineering/synthesis-skills (18 stars, last pushed today), licensed Apache-2.0. It adds 44 tokens to every session and 696 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.
Other skills, from other repositories
webgl-holographic-foil
A self-contained WebGL2 hero: thin-film interference over a crushed-foil surface whose palette shifts with the viewing angle; move the cursor to tilt the film.
general-video
Author or edit a custom HyperFrames composition when no specialized workflow fits, or when BRIEF.md sets flow: companion. Use for longer or multi-scene pieces, brand and sizzle reels, montages, static loops, static title cards, footage remixes, and freeform builds. Use motion-graphics instead for a short unnarrated…
html-ppt-hermes-cyber-terminal
OpenDesign + BYOK: choosing and wiring your own model, hands-on — cost, quality, and the routing decision. Built as a decision-grade AI literacy deck for engineers, IT, applied-AI teams.
html-ppt-taste-brutalist
16:9 HTML deck in tactical-telemetry / CRT-terminal taste. Deactivated-CRT charcoal slides, white-phosphor monospace, hazard-red accent, scanline overlay, ASCII syntax, density over decoration. Distilled from Leonxlnx/taste-skill brutalist-skill (Tactical Telemetry mode).
diagnostic-stem-delivery
Audio production with diagnostic analysis, timecode parsing from documents, and verified export workflow.
chengfeng-check-updates
An environment manager for a video-editing system. It checks whether its skills and runtime—the software needed to run them—are installed and compatible.