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 igapyon/igapyon-agent-skills --skill igapyon-diary-writergit clone --depth 1 https://github.com/igapyon/igapyon-agent-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/igapyon/igapyon-agent-skills/igapyon-diary-writer)<a href="https://agentmods.dev/skills/igapyon/igapyon-agent-skills/igapyon-diary-writer"><img src="https://agentmods.dev/badge/skills/igapyon/igapyon-agent-skills/igapyon-diary-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/igapyon/igapyon-agent-skills/igapyon-diary-writer"><img src="https://agentmods.dev/badge/skills/igapyon/igapyon-agent-skills/igapyon-diary-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 | $0.00103 | $0.00775 |
| Opus 5 | $0.00051 | $0.00387 |
| Sonnet 5 | $0.00021 | $0.00155 |
| Haiku 4.5 | $0.00010 | $0.00077 |
Grade A, and why
igapyon-diary-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 — 47 lines — stays where its author put it; the contents beside it link to each section on GitHub.
igapyon-diary-writer
This skill handles igapyon's own diary data.
Use it for writing, updating, checking, or preparing entries in the diary repository. The canonical diary content is the GitHub repository https://github.com/igapyon/diary. In local work, assume the sibling path ../diary/ exists relative to this igapyon-agent-skills repository.
igapyonv3 is the processing system for diary. Its GitHub repository is https://github.com/igapyon/igapyonv3; locally, assume sibling path ../igapyonv3/ exists when inspection is needed. Use igapyonv3 only to understand or verify diary processing rules, such as .src.md conversion, generated .md / .html.md, index generation, keywords, and supported FreeMarker directives.
When To Use
Use this skill when the user asks for:
igapyon-diary-writer- an igapyon diary entry
diary/YYYY/igYYMMDD.src.mdcreation or revision- checking diary source, generated Markdown, keyword, memo, index, or RSS behavior
- applying
igapyonv3conventions to diary content - preparing a diary entry from notes, events, repository work, release work, or daily observations
Do not use this skill for:
- Mikuku Note articles or
mikuku-articles - generic blog posts not intended for
diary - Qiita, Note, GitHub PR, GitHub Release, or social post writing unless the user explicitly connects it to diary content
Workflow
Read references/workflow.md before creating, revising, checking, or verifying diary content.
Read references/diary-structure.md when you need the observed 2025/2026 diary structure, related diary section patterns, year index shape, keyword markers, or igapyonv3 custom directive list.
Read references/igapyon-mikuku-writing-relationship.md when comparing igapyon and Mikuku writing, reasoning about their shared editorial origin, or deciding which Mikuku-specific traits must stay out of diary prose. Treat it as design background; reading it does not activate the Mikuku persona or make Mikuku articles the primary diary-style source.
What ships with it
7 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.
- 10d ago First seen · 47 lines · 103 tokens per session scan A 04d77c9f38c3
igapyon-diary-writer is a skill published in the GitHub repository igapyon/igapyon-agent-skills (2 stars, last pushed 25d ago), licensed Apache-2.0. It adds 103 tokens to every session and 775 once invoked, about $0.0005 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 2026-08-31.
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