Borrowing it
Nothing to install: this file belongs to YusukeKokubo/phantomtype. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/YusukeKokubo/phantomtype/main/.claude/skills/add-blog-entry/SKILL.mdgit clone --depth 1 https://github.com/YusukeKokubo/phantomtypeWrote 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/yusukekokubo/phantomtype/add-blog-entry)<a href="https://agentmods.dev/skills/yusukekokubo/phantomtype/add-blog-entry"><img src="https://agentmods.dev/badge/skills/yusukekokubo/phantomtype/add-blog-entry/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/yusukekokubo/phantomtype/add-blog-entry"><img src="https://agentmods.dev/badge/skills/yusukekokubo/phantomtype/add-blog-entry.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 | $0.00068 | $0.00609 |
| Opus 5.5 | $0.00027 | $0.00244 |
| Sonnet 5.5 | $0.00014 | $0.00122 |
| Haiku 4.5 | $0.00007 | $0.00061 |
Grade A, and why
add-blog-entry 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 2mo 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.
The source is not reproduced here
No licence file
A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.
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.
- 2mo ago First seen · 58 lines · 68 tokens per session scan A 154d065b216a
add-blog-entry is a skill published in the GitHub repository YusukeKokubo/phantomtype (2 stars, last pushed 3mo ago), with no licence file. It adds 68 tokens to every session and 609 once invoked, about $0.0003 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 2026-08-31.
add-blog-entry compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| add-blog-entryYusukeKokubo/phantomtype | Skill | 2 | 3mo ago | none | A | 68 | Claude Code |
| migrate-radix-to-baseshadcn-ui/ui | Skill | 128k | today | MIT | A | 61 | Cursor |
| intelligence-vocabularyCopilotKit/CopilotKit | Skill | 39k | today | MIT | A | 79 | Claude Code |
| saas-builderixartz/SaaS-Boilerplate | Skill | 7.5k | 6d ago | MIT | A | 75 | Claude Code, Codex |
| trigger-authoring-taskstriggerdotdev/trigger.dev | Skill | 17k | 4d ago | Apache-2.0 | A | 115 | Claude Code, Codex |
| arcgis-to-portaljsdatopian/portaljs | Skill | 2.4k | 10d ago | MIT | A | 134 | Claude Code |
| fast-typescript-checkinternet-development/www-sacred | Skill | 1.6k | 3d ago | MIT | A | 84 | Claude Code, Codex |