Closes the inspect-capability parity gap: show-command and show-tool were
the only discovery/inspection CLI commands lacking --output-format support,
making them outliers in the ecosystem that already had unified JSON
contracts across list-sessions, load-session, delete-session, and
flush-transcript (#160/#165/#166).
Concrete additions:
- show-command: --output-format {text,json}
- show-tool: --output-format {text,json}
JSON envelope shape (found case):
{name, found: true, source_hint, responsibility}
JSON envelope shape (not-found case):
{name, found: false, error: {kind:'command_not_found'|'tool_not_found',
message, retryable: false}}
Exit codes:
0 = success
1 = not found
Backward compatibility:
- Default (no --output-format) is 'text' (unchanged)
- Text output byte-identical to pre-#167 (three newline-separated lines)
Tests (10 new, test_show_command_tool_output_format.py):
- TestShowCommandOutputFormat (5): found + not-found in JSON; text mode
backward compat; text is default
- TestShowToolOutputFormat (3): found + not-found in JSON; text mode
backward compat
- TestShowCommandToolFormatParity (2): both accept same flag choices;
consistent JSON envelope shape
Full suite: 114 → 124 passing, zero regression.
Closes ROADMAP #167.
Why this matters:
Before: Claws calling show-command/show-tool had to parse human-readable
prose output via regex, with no structured error signal.
After: Same envelope contract as load-session and friends: JSON-first,
typed errors, machine-parseable.
Related clusters:
- Session-lifecycle CLI parity family (#160, #165, #166, #167)
- Machine-readable error contracts (same vein as #162 atomicity + #164
cancellation state-safety: structured boundaries for orchestration)
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