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 skills/jhlee0409/claude-plugins/output-formatnpx skills add jhlee0409/claude-plugins --skill output-formatgit clone --depth 1 https://github.com/jhlee0409/claude-pluginsWrote 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/jhlee0409/claude-plugins/output-format)<a href="https://agentmods.dev/skills/jhlee0409/claude-plugins/output-format"><img src="https://agentmods.dev/badge/skills/jhlee0409/claude-plugins/output-format.svg" alt="Measured on agentmods" 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 | $0.00013 | $0.02567 |
| Opus 5 | $0.00006 | $0.01283 |
| Sonnet 5 | $0.00003 | $0.00513 |
| Haiku 4.5 | $0.00001 | $0.00257 |
Grade A, and why
output-format 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 5d 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 — 388 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Output Format Guide
All plugin outputs should be visually clear and beautiful. Choose the format that best fits the content.
EXECUTION INSTRUCTIONS
When generating output for any OAS plugin command, Claude MUST:
- Select appropriate format based on content type (see Format Selection below)
- Use consistent styling within a single output
- Keep width under 80 characters for terminal compatibility
- Use emojis sparingly - only for status indicators
- Add blank lines between sections for readability
This is a REFERENCE skill - use it to format outputs from other commands.
Format Selection
Content Type → Best Format
─────────────────────────────────────
Key-Value pairs → Table or Aligned
Process/Steps → Flow Diagram
Hierarchy/Structure → Tree
Before/After → Comparison
Status/Progress → Progress Bar
Summary → Box
List with status → Checklist
Timeline → Timeline
1. Tables (Structured Data)
For structured key-value or multi-column data:
┌──────────────┬─────────────────────────────────────┐
│ Item │ Content │
├──────────────┼─────────────────────────────────────┤
│ File │ src/api/user-api.ts │
│ Location │ getUserById() function (line 45-52) │
│ Reason │ Response type: email field added │
└──────────────┴─────────────────────────────────────┘
Simple aligned format (for fewer columns):
File: src/api/user-api.ts
Location: getUserById() function (line 45-52)
Reason: Response type: email field added
2. Flow Diagrams (Process/Steps)
Horizontal flow:
┌─────────┐ ┌─────────┐ ┌─────────┐ ┌─────────┐
│ Fetch │───▶│ Parse │───▶│ Diff │───▶│ Generate│
│ Spec │ │ Schema │ │ Compare │ │ Code │
└─────────┘ └─────────┘ └─────────┘ └─────────┘
Vertical flow with details:
┌──────────────────────────────┐
│ 1. Fetch OpenAPI Spec │
│ GET /openapi.json │
└──────────────┬───────────────┘
│
▼
┌──────────────────────────────┐
│ 2. Compare with Cache │
│ Hash: abc123 → def456 │
└──────────────┬───────────────┘
│
┌───────┴───────┐
▼ ▼
┌──────────┐ ┌──────────┐
│ Changed │ │ No Change│
│ Continue │ │ Done │
└────┬─────┘ └──────────┘
│
▼
┌──────────────────────────────┐
│ 3. Generate Code │
└──────────────────────────────┘
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.
- 5d ago First seen · 388 lines · 13 tokens per session scan A 6e49aecba388
output-format is a skill published in the GitHub repository jhlee0409/claude-plugins (4 stars, last pushed 7mo ago), licensed MIT. It adds 13 tokens to every session and 2,567 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.
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