A developer at Viget built a Slack-first coordination tool for their weekly internal show using an agent-driven workflow. The post details the full pipeline: converting ideas into PRDs, using Codex in Plan Mode for architecture, decomposing into milestones with a custom skill, and executing with a structured 'let's jam' loop. Key lessons include the importance of well-defined inputs before letting agents code, managing context window decay in long sessions, treating opaque tool failures as environmental rather than logical, and using different models as specialists (Codex for code, Gemini for UI critique). The result: 36K LOC, 248 commits over 6 days, 90%+ test coverage across packages, with less than 1% of code written manually.
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The problem: the uncertainty tax #Product Philosophy: assist, don’t overwhelm #What I built: #The process: #1 Comment
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