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 commands/signalcompose/claude-tools/headergit clone --depth 1 https://github.com/signalcompose/claude-toolsWhat 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 | $0.00013 | $0.00311 |
| Opus 5 | $0.00006 | $0.00156 |
| Sonnet 5 | $0.00003 | $0.00062 |
| Haiku 4.5 | $0.00001 | $0.00031 |
Grade A, and why
header 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
X Articles ヘッダー画像生成
以下のBashコマンドを即座に実行してください:
重要: dangerouslyDisableSandbox: true を使用してください（apt-get による Pillow インストールの可能性があるため）。
Bash toolで実行:
- コマンド:
python3 ${CLAUDE_PLUGIN_ROOT}/scripts/header-image.py "$ARGUMENTS" - dangerouslyDisableSandbox:
true（必須）
実行後の確認
画像が生成されたら、ファイルサイズと以下を確認:
- サイズが 1200×480 px になっているか
- テキストが下端 60px 以内にはみ出していないか
使用例
/x-article:header --title "DraftJS Paste Tips" --subtitle "X Articles エディタで安定ペーストする方法" --output .x-article/header.png
/x-article:header --title "My Article Title"
ヘッダー画像ガイド
詳細なフォント検出・レイアウト設定については:
${CLAUDE_PLUGIN_ROOT}/skills/x-articles-knowledge/references/header-image.md を参照。
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 · 34 lines · 13 tokens per session scan A fd2e3b7bf330
header is a command published in the GitHub repository signalcompose/claude-tools (4 stars, last pushed 5d ago), licensed MIT. It adds 13 tokens to every session and 311 once invoked, about $0.0001 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.
Other commands, from other repositories
brand-generate
Generate an on-brand document from a saved Brand Profile.
stt
Transcribe a local audio file or remote audio URL into text.
audition-voices
Generate voice audition samples for a character using Venice TTS.
review-video
Make a " Reviews" video — a fast, faceless VO montage of REAL, verified competitor reviews that names the recurring complaints and positions YOUR business as the alternative, then hands off to your own customer testimonials.
search
Search videos by text, image, or entity using TwelveLabs.
transcribe
Transcribe the file at $ARGUMENTS into Markdown using the Frenchie MCP server.