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Markets2026-08-29 · source-backed
punctual.sh: 162 commits, 30,658 lines of TypeScript, 737 test assertions, $0/month, with Google Calendar and Microsoft 365 sync, round-robin teams, webhooks, an embed widget and an MCP server so agents can book meetings. The part that makes it worth reading is the failure data. A two-model adversarial review found 15 candidate issues, and 14 were real bugs the 737 passing tests never caught, because agent-written tests check what the agent believed it built. Serge Bulaev also notes Cal.com's April 2026 relicense to cal.diy under MIT cut 411,000 lines including teams, workflows, insights and SSO, and is marked non-production. "The tests pass and 14 of 15 flagged issues were real" is the single most useful sentence about agent-built software I read this week. (Serge Bulaev)
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Microsoft released VS Code / Shared entities / Shared topic / Earlier coverage / Tension
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Microsoft supports MCP / Shared entities / Earlier coverage
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Microsoft supports MCP / Shared entities / Shared topic / Earlier coverage
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Microsoft supports MCP / Shared entities / Shared topic / Earlier coverage
Linked by a graph relationship (Microsoft supports MCP); both cover MCP, MIT; overlapping topics (agent, builder).
Linked by a graph relationship (Microsoft supports MCP); both cover April, MCP; overlapping topics (agent, builder).