Each tool has a distinct, non-overlapping purpose: read a single note, create a note, check status, search notes, and append a lesson. There is no ambiguity about which tool to use for a given operation.

All tools share the 'evidence_' prefix and mostly follow a verb_noun pattern (read, create_note, search, append_lesson). 'evidence_status' is a minor deviation as it uses a noun rather than an explicit verb like 'get_status' or 'show_status', but the overall pattern is consistent and readable.

With 5 tools, the server is well-scoped for its purpose of managing local evidence notes. Each tool covers a core operation without unnecessary bloat, making the set easy to navigate.

The tool set covers the primary lifecycle: create, read, search, and append lessons, plus status. It lacks explicit update/delete operations, but given the 'never overwrite' policy and the append-only nature of lessons, these omissions are likely intentional and not a major gap.