exec tool: witnessed shell execution#2
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systemic-engineer merged 2 commits intomainfrom Mar 2, 2026
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Tests reference tools.exec_schema() which doesn't exist yet. Compilation fails as expected. RED phase complete. Co-Authored-By: Reed <reed@systemic.engineer>
- gall_ffi.erl: exec/2 runs shell command in work_dir, captures stdout+stderr - tools.gleam: exec_schema/0, exec_tool_names/0, added to daemon_tools_json - daemon.gleam: exec handler with record_exec (@exec fragment in session trace) - Fragment data: command + output_sha (not full output — could be huge) - Works without active session (returns output, no fragment) - 44 tests green (4 new exec tests + 40 existing) Co-Authored-By: Reed <reed@systemic.engineer>
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Summary
execMCP tool — agents execute shell commands through gall instead of raw bash. Every execution is witnessed as an@execfragment in the session trace.gall_ffi.erl:exec/2— runs command in work_dir viaos:cmd, captures stdout+stderr.record_exec— follows therecord_readpattern. Fragment data carriescommand: <cmd>\noutput_sha: <hash>(not full output — could be huge).4 new tests (44 total). TDD arc: red then green.
Test plan