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Seven ADRs capturing the why behind decisions already made: vendoring Cordis as source with a guarded manifest; the microkernel event taxonomy with one swappable concrete loop; event-sourced sessions with derived history and the append-before-emit ordering contract; the provider-neutral content-block vocabulary (and why not OpenAI/Anthropic shapes); the custom tool-schema DSL over schemastery; tool schemas living in the prompt assembly; and mechanical quality gates over prose guidelines (the agents-write-the-code rationale).