Dan Mercede

Operator and systems builder. I help teams turn AI experiments into owned workflows they can run. Open-source tooling and field notes. danmercede.com

San Diego, ca Joined on May 10, 2026 https://danmercede.com

Education

Queen's University

Dan Mercede

Jul 24

The Fail-Closed Harness: Why a Safe Agent's Default Is Refusal

#agents #ai #security #llmops

12 min read

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Dan Mercede

Jul 25

Partial Oracles for Agent Testing

#agents #ai #llm #testing

1 min read

Dan Mercede

Jul 23

Two Traps in a Zero-Dep LLM Client

#api #llm #programming #python

1 min read

Dan Mercede

Jul 22

Green CI Proved Nothing

#ci #debugging #devops #testing

1 min read

Dan Mercede

Jul 20

The Timeout That Ate My Commit

#automation #debugging #git #testing

1 min read

Dan Mercede

Jul 21

CLI Errors Are Part of Your Agent API

#agents #api #cli #debugging

2 min read

Dan Mercede

Jul 12

The Recon Refuted the Task: Building Infrastructure With an Agent You Can Trust

#agents #ai #devops #infrastructure

11 min read

Dan Mercede

Jul 10

Rekindle: your abandoned side project misses you 🔥

#devchallenge #weekendchallenge #ai #googleai

3 min read

Dan Mercede

Jul 10

Building Engram in 48 hours: what a memory engine taught me about forgetting

#ai #alibabachallenge #agents #community

2 min read

Dan Mercede

Jul 25

Schema Is a Second Surface

#architecture #react #seo #webdev

2 min read

Dan Mercede

Jul 8

The Router Is a Trap: Running Other Models Under Claude Code, Off Their Own Subscriptions

#agents #ai #claudecode #llmops

8 min read

Dan Mercede

Jul 23

Certify vs Reproduce

2 min read

Dan Mercede

Jul 22

Vet the AI PR Fleet

#ai #automation #github #softwareengineering

2 min read

Dan Mercede

Jul 20

Recon vs Prior Decisions

#agents #ai #llm #systemdesign

1 min read

Dan Mercede

Jul 6

Giving Your Coding Agent Web Access Without Wrecking Its Context Window

#selfhosting #devops #homelab #docker

8 min read

Dan Mercede

Jul 19

Cut Agent Web-Read Tokens

1 min read

Dan Mercede

Jul 19

PR-Merge Train Gotchas

#automation #devops #git #github

2 min read

Dan Mercede

Jul 4

The Reviewer Blessed the Bug: Why Agent-Written Code Needs Layered Review

#agents #ai #codereview #security

8 min read

Dan Mercede

Jul 18

Benchmarks Evict Hot Models

1 min read

Dan Mercede

Jul 3

Building a Governed, Double-Send-Safe Delivery Pipeline for Agent Outputs

#agents #llm #ai #architecture

6 min read

Dan Mercede

Jul 18

Don't Index Your System of Record

#agents #architecture #rag #systemdesign

1 min read

Dan Mercede

Jul 18

Silence Is Not Absence

#cli #debugging #devjournal #webscraping

1 min read

Dan Mercede

Jul 18

The Limit Kills the Report, Not the Work

#agents #automation #llm #softwaredevelopment

1 min read

Dan Mercede

Jul 17

Recheck What You Rejected

#agents #ai #monitoring #productivity

2 min read

Dan Mercede

Jul 17

Prefill demos server-side

#automation #devjournal #tooling #webdev

1 min read

Dan Mercede

Jul 17

A Report Is Not Recon

#management #productivity #softwareengineering

1 min read

Dan Mercede

Jul 15

Refuted or Rate Limited

#agents #ai #api #llm

1 min read

Dan Mercede

Jun 30

The Alibi of a Green Gate

#devops #ai #architecture #programming

2 min read

Dan Mercede

Jul 14

Tests Spend Prod Budget

#devops #softwareengineering #sre #testing

1 min read

Dan Mercede

Jul 13

The Two-Plane Architecture

1 min read

Dan Mercede

Jul 14

Runtime Governance: How It Works

1 min read

Dan Mercede

Jul 13

The Fix Had the Same Race

#debugging #devjournal #distributedsystems #programming

1 min read

Dan Mercede

Jul 10

Coherent Isn't Correct

#agents #ai #automation #testing

2 min read

Dan Mercede

Jul 10

Placement Beats Rules

#agents #ai #debugging #productivity

2 min read

Dan Mercede

Jun 27

Self-Correcting Agents: Learning the Loop the Hard Way

#agents #llm #ai #llmops

13 min read

Dan Mercede

Jun 26

Open-Source the Gate, Not the Verdict

#ai #architecture #opensource #softwareengineering

1 min read

Dan Mercede

Jun 26

Self-Hosting Many Apps on One Box: A Beginner's Guide to the Two-Plane Architecture

#selfhosting #cloudflare #tailscale #networking

26 min read

Dan Mercede

Jun 23

I built a CI budget check for MCP context bloat

#ai #mcp #devops #opensource

1 min read

Dan Mercede

Jun 20

Pre-Execution Authority Gates: Why Governance Must Be Evaluated Before State Mutation

#architecture #security #softwareengineering #systemdesign

4 min read

Dan Mercede

Jun 20

The Authority Gate, Made Runnable: Fail-Closed Merge Admission for Agent-Written Code

#agents #ai #devops #security

4 min read

Writing Debut

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