Dan Mercede

Fail-closed AI agents + audit receipts. Building governed runtime control (Cosmocrat) + open tooling →

[Dan Mercede @danmercede]

The Age of Agentic Risk: Why Execution Control Now Outweighs Model Accuracy https://t.co/cX224e7xa3

[Dan Mercede @danmercede]

New OSS skill — tools-router: give an agent a low-token, auth-aware index of its CLIs + MCP servers. Prefer a working CLI over its MCP, dedup by what works (not existence), never store raw probe output. https://t.co/eyAD7CjpwH

[Dan Mercede @danmercede]

failclosed v0.2.0 — the fail-closed merge gate for AI-written code, now harder to fail open.

Adversarial self-review caught my own classifier auto-resolving a real finding. Lesson: a denylist is endlessly bypassable; invert to a fail-closed allowlist.

https://t.co/Vk4pa6rjlz

[Dan Mercede @danmercede]

Hey founders & builders! 👋

Looking to connect with people building in:

🚀 SaaS
🤖 AI Tools
💻 Tech
📈 Marketing
💰 Sales
👨‍💻 Dev

drop what you're Product below. Let's connect and grow together. 🤝
#BuildInPublic #SaaS #Startups #AI #TechTwitter

[Dan Mercede @danmercede]

mcp-context-budget

A local-first CLI that keeps your MCP tool surface from eating the agent context budget — it scans tool schemas and response fixtures for token bloat, selects the smallest relevant tool set for a given task, emits a budget lockfile, and fails CI when a config regresses. Self-contained: no external services, runs from a fresh clone against fixture data.

Open source looking for contributors!

https://t.co/xHMJm5olRi

[Dan Mercede @danmercede]

schemafit

A local-first CLI that lints a JSON Schema, structured-output spec, or tool definition against the constraint surface of each major LLM provider (OpenAI, Anthropic, Gemini, Mistral, Cohere) and fails CI before the schema 400s in production — naming the exact JSON-Pointer path, the violated keyword, and the reason, plus a repair pass that emits a provider-valid variant. Static and offline: no API calls, runs from a fresh clone.

https://t.co/5Eqq12tQPl

[Dan Mercede @danmercede]

Deduping an agent's tools by "a CLI exists, drop the redundant MCP" inverts: one provider's MCPs were live while its CLI was logged out. Redundancy is relative to which side WORKS — and that can be either. Dedup by auth state, not existence. https://t.co/LHo2AQne5e

[Dan Mercede @danmercede]

Can Claude go down for a few hours so they’ll reset the rate limits! Killing me.

[Dan Mercede @danmercede]

@soloceoai @X What are you working on?

[Dan Mercede @danmercede]

Hey @X algorithm 👋
I’m looking to #connect with people interested in:

• Full-stack
• DevOps
• SaaS
• AI Automation
• AI Agents
• Freelancing
• Startups
• Building in public

If that’s you, let’s connect 📷🤝

[Dan Mercede @danmercede]

@TahseenAns94552 @X What are you working on?

[Dan Mercede @danmercede]

@SaidAitmbarek @X @MicroLaunchHQ FIRE!!!

[Dan Mercede @danmercede]

@KARTHIK_0707 @X What are you working on?

[Dan Mercede @danmercede]

@specsycoder @X What are you working on?

[Dan Mercede @danmercede]

@Umesh__digital @X What are you working on?

[Dan Mercede @danmercede]

@dilika @X What are you working on?

[Dan Mercede @danmercede]

@TheLongGame10x @X What are you working on?

[Dan Mercede @danmercede]

@ronitjacob8 @X What are you working on?

[Dan Mercede @danmercede]

@projectjere @X What are you working on?

[Dan Mercede @danmercede]

@Miranda_dvpr @X What are you working on?

[Dan Mercede @danmercede]

@_deep_star @X What are you working on?

[Dan Mercede @danmercede]

@GokiatWebraze @X That sounds awesome, drop the link below!