Powerduck | OpenAPI Studio(@PowerduckLabs):Agent called GET /v1/invoices/list when the route is /v1/invoices?status=open. Invented the shape from a blog post, tests passed because it wrote the mock too. We point the agent at the OpenAPI file in Powerduck instead of curl examples. Where does your agent get its API truth?

Powerduck | OpenAPI Studio

@PowerduckLabs

I build Powerduck — local-first OpenAPI studio. Writing about spec drift, AI agents that lie about being done, and docs that drift for months.

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Powerduck | OpenAPI Studio@PowerduckLabs

2026.10.17 05:40

Agent called GET /v1/invoices/list when the route is /v1/invoices?status=open. Invented the shape from a blog post, tests passed because it wrote the mock too. We point the agent at the OpenAPI file in Powerduck instead of curl examples. Where does your agent get its API truth?