fix: humanize search, sessions, and mutation output

[karngyan]

Claim

The text-mode output of search, sessions, and mutations show is now scannable, basis-points jargon is gone from every text surface, the zero-finding digest no longer buries the signal under one-occurrence giants, and short id prefixes are accepted everywhere a stored id is a required argument. --output json is byte-for-byte unchanged — every new report field is #[serde(skip)] (or a transparent #[serde(flatten)] wrapper), so machine consumers see no change.

Before / after

search (text)

Before:

evt_claude_fc1bc1d7… (full 64-hex)	full_text	5000 bps	{"command":"mise exec -- [cargo] [test] -p ...

After:

evt_generic_3333eeee…    1d ago  demo  text  50.0%  mise exec -- [cargo] test -p autophagy-store --all-features ...

Full event ids, raw snippets, and the basis-points ranking fields remain in --output json (noted in search --help).

sessions (text)

Before:

SESSION\tSOURCE\tEVENTS\tLAST EVENT\tPROJECT
ses_claude_d19bfbd8…(71 chars)\tgeneric-jsonl\t2\t2026-07-16T10:01:00Z\t/workspace/demo

After:

SESSION                  SOURCE         EVENTS  LAST EVENT  PROJECT
ses_generic_9999cccc…    generic-jsonl       2  1d ago      /workspace/demo

Home-relative (~/...) projects; compact times; full ids and RFC3339 timestamps stay in JSON.

mutations show (text)

Before: header line + transitions only; the lesson lived in JSON.
After:

Prevent repeated command failure: shell: mise run check
id            mut_6b51ef81…
state         candidate
hypothesis    The recurring `mise run check` failure is caused or amplified by missing preconditions or unchanged retries.
intervention  Before running `mise run check`, verify its required preconditions. If it fails with exit code 1, do not retry it unchanged; ...
triggers      failure/v2|shell|mise run check|exit:1
evidence      3 events · 1 counterexamples
gates         5+ replays · 80.0% success · ≤10.0% false positives

2026-07-17T14:23:11Z	none -> candidate	generated from evidence

Near-miss / digest (text)

Before: five 1-occurrence rows ending in … bps support unmet: min_occurrences.
After (recurring candidate):

Repeated command failure: shell: mise exec -- cargo test -p…	2 occ · 1 sessions · 0 counterexamples · 100.0% support	needs 3+ occurrences, saw 2

After (nothing recurs):

2 candidate signatures, none recurring — nothing near threshold

Short ids

mutations show mut_6b51ef819f resolves the unique prefix; an ambiguous prefix errors with the candidates; next-step hints echo the short id the user typed. Applies to mutations show/challenge/reject/replay/replay-draft/shadow/shadow-draft/install/uninstall and delete session.

Evidence

New unit tests (bin autophagy): short_id_keeps_prefix_and_eight_digest_chars, short_id_leaves_already_short_ids_untouched, percent_renders_basis_points_to_one_decimal, clean_snippet_extracts_command_and_preserves_highlights, clean_snippet_handles_truncated_command_payload, clean_snippet_strips_json_framing_without_a_command_field, clean_snippet_leaves_plain_text_alone, truncate_words_cuts_at_a_word_boundary, truncate_words_leaves_short_text_unchanged, shorten_project_and_basename, resolve_stored_id_matches_a_unique_prefix, resolve_stored_id_passes_through_an_exact_full_id, resolve_stored_id_reports_an_ambiguous_prefix, resolve_stored_id_passes_missing_and_too_short_prefixes_through.

New integration tests (tests/cli.rs): search_text_humanizes_rows_while_json_keeps_full_fields, sessions_text_aligns_and_compacts_while_json_stays_stable, digest_summarizes_when_no_candidate_recurs, mutations_show_text_renders_the_lesson, short_mutation_id_prefix_resolves_and_hint_echoes_it. Updated setup_digest_surfaces_scan_stats_and_observations_when_nothing_qualifies for the plain-language gate phrasing.

mise run check is green (ci + docs + fmt + lint + test).

Privacy

Presentation only. Snippets rendered in text mode are the same redaction-approved projection already used for search; no new data is read, persisted, or exposed. JSON output is unchanged, so the spec-versioned surface is untouched.

🤖 Generated with Claude Code

https://claude.ai/code/session_015LY7xtercMc3NtLeX2z4YV