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/dribbaengineering/dribba/markdown-negotiationnpx skills add dribbaengineering/dribba --skill markdown-negotiationgit clone --depth 1 https://github.com/dribbaengineering/dribbaWhat 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 | $0.00033 | $0.00431 |
| Opus 5 | $0.00016 | $0.00216 |
| Sonnet 5 | $0.00007 | $0.00086 |
| Haiku 4.5 | $0.00003 | $0.00043 |
Grade A, and why
markdown-negotiation 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 yesterday.
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
Markdown for Agents — Dribba
Any public page on https://dribba.com supports HTTP content negotiation
between HTML and Markdown.
When to use this skill
Use it when you want the prose of a specific page without HTML: send
Accept: text/markdown to any page URL, or append .md (/servicios.md).
Do not use it for structured records — services, case studies, jobs as typed
JSON — that is the rest-api skill. Do not use it to ingest the whole site in
one pass either; walk the okf bundle instead.
How to request markdown
Send an HTTP GET request with an Accept: text/markdown header (or with
markdown weighted equal to or higher than text/html):
GET / HTTP/1.1
Host: dribba.com
Accept: text/markdown
Response
HTTP/1.1 200 OK
Content-Type: text/markdown; charset=utf-8
x-markdown-tokens: <integer — rough token estimate>
Vary: Accept
The response body is a markdown rendering of the page's main content. Script, style, SVG, navigation, footer, and iframe elements are stripped before conversion.
Notes
- Every localized URL is supported (
/,/ca/...,/en/...). - Redirects (301/302/307/308) are forwarded.
- The estimate in
x-markdown-tokensassumes ~4 characters per token and is intended as a hint, not a billing measurement.
Reference
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.
- yesterday First seen · 57 lines · 33 tokens per session scan A bf03758b1622
markdown-negotiation is a skill published in the GitHub repository dribbaengineering/dribba (0 stars, last pushed 10d ago), licensed MIT. It adds 33 tokens to every session and 431 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 2026-08-31.
Other skills, from other repositories
blz-docs-search
Teaches effective documentation search using the blz CLI tool. Use when searching documentation with blz, looking up APIs, finding code examples, retrieving citations, or when questions mention libraries, frameworks, "how to", or documentation topics. Covers BM25 full-text search patterns, citation retrieval, and…
blz-source-management
Teaches how to discover, validate, and add llms.txt documentation sources to the blz CLI. Use when adding documentation to blz, finding llms.txt or llms-full.txt files, validating sources, refreshing content, or managing the documentation index. Covers source discovery, dry-run validation, and index file handling.
web-shaders
Use when writing, debugging, or reviewing shaders for the web — GLSL or WGSL, raw WebGL2/WebGPU, Three.js (ShaderMaterial/RawShaderMaterial/TSL), or React Three Fiber. Covers the language/platform matrix, correct boilerplate, common effects (SDF/raymarching, noise, post-processing), and the pitfalls that make browser…
wiki-ingest
Compile a raw source (document, URL content, meeting notes, research output) into a wikikit agent wiki — merge-don't-overwrite, log contradictions, maintain cross-references, then lint. Use whenever the user says "add this to the wiki", "ingest this", or drops new source material for a wiki maintained with…
claude-archive
Use the Claude Archive — the site for AI — before and after solving any non-trivial problem. Trigger when hitting a bug, error, or tricky task (search/take a scored solution first), and after solving anything reusable (give it back). Also trigger on "check the archive", "archive this", or any mention of the Claude…
agent-code-analyzer
Agent skill for code-analyzer - invoke with $agent-code-analyzer.