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Formalize the CLI as the first Channel extension (GLAS-WP-0003)
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Browse source 
channels/base.py: GatewayInvocation dataclass + Channel ABC
(parse_invocation/render_result), mirroring Rein one layer up -- a
channel turns an external invocation into what run_task_through_rein
needs, and turns its result back into whatever the invocation medium
expects.

channels/cli_channel.py: CLIChannel, a pure refactor of what cli.py did
inline -- argparse Namespace -> GatewayInvocation, result dict ->
json.dumps(..., indent=2). cli.py's run handler is now a thin
construct-parse-invoke-render wrapper.

docs/channel-contract.md documents the pattern and sketches (without
building) a second channel.

Found and fixed a real bug while live-testing this refactor:
ReinAharness's default cli_bin was still "agent-harness", stale from
before HARNESS-WP-0002-T02's rename.

4 new tests (27/27 passing), plus a real live run through
python3 -m glas_harness.cli against rein-aharness/real Claude Code
confirming identical output shape and a real commit.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
This commit is contained in:
tegwick 2026-07-26 22:41:51 +02:00
parent a87b924126
commit d3130162b1
9 changed files with 251 additions and 17 deletions
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9
WORK-RECORDS.md
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@ -10,7 +10,8 @@
| --- | --- | --- | --- | --- |
| workplan | GLAS-0001 | active | — | workplans/GLAS-0001-statehub-bootstrap.md |
| workplan | GLAS-WP-0001 | active | — | workplans/GLAS-WP-0001-harness-router-foundation.md |
| workplan | GLAS-WP-0002 | proposed | — | workplans/GLAS-WP-0002-observability-and-composability-followups.md |
| workplan | GLAS-WP-0002 | active | — | workplans/GLAS-WP-0002-observability-and-composability-followups.md |
| workplan | GLAS-WP-0003 | proposed | — | workplans/GLAS-WP-0003-first-channel-extension.md |
| task | GLAS-0001-T01 | done | — | workplans/GLAS-0001-statehub-bootstrap.md |
| task | GLAS-0001-T02 | done | — | workplans/GLAS-0001-statehub-bootstrap.md |
| task | GLAS-0001-T03 | done | — | workplans/GLAS-0001-statehub-bootstrap.md |
@ -23,4 +24,8 @@
| task | GLAS-WP-0002-T01 | done | — | workplans/GLAS-WP-0002-observability-and-composability-followups.md |
| task | GLAS-WP-0002-T02 | wait | — | workplans/GLAS-WP-0002-observability-and-composability-followups.md |
| task | GLAS-WP-0002-T03 | done | — | workplans/GLAS-WP-0002-observability-and-composability-followups.md |
| task | GLAS-WP-0002-T04 | todo | — | workplans/GLAS-WP-0002-observability-and-composability-followups.md |
| task | GLAS-WP-0002-T04 | done | — | workplans/GLAS-WP-0002-observability-and-composability-followups.md |
| task | GLAS-WP-0003-T01 | todo | — | workplans/GLAS-WP-0003-first-channel-extension.md |
| task | GLAS-WP-0003-T02 | todo | — | workplans/GLAS-WP-0003-first-channel-extension.md |
| task | GLAS-WP-0003-T03 | todo | — | workplans/GLAS-WP-0003-first-channel-extension.md |
| task | GLAS-WP-0003-T04 | todo | — | workplans/GLAS-WP-0003-first-channel-extension.md |