tractor/ai/prompt-io/opencode/20260826T030534Z_d130431c_p...

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---
model: gpt-5.6-sol
service: opencode
session: tractor-addr-unpacking
timestamp: 2026-08-26T03:05:34Z
git_ref: d130431c
scope: code
substantive: true
raw_file: 20260826T030534Z_d130431c_prompt_io.raw.md
---
## Prompt
After committing the reviewed bindspace/interface stack, the human
asked to continue with the next established Layer C step.
## Response summary
Retained a serializable realized `BindspaceRef` on frozen tunnelled
address declarations without carrying the process-local `Bindspace`
capability. The namespace API remains tuple-shaped, using the declared
key before realization and stable inode afterward. Existing transport
peeling and unrealized serialization remain unchanged.
## Files changed
- `tractor/discovery/_tunnel.py` - realized bindspace-ref retention and
immutable annotation method.
- `tests/discovery/test_tunnelled_addr.py` - ref, compatibility and
mismatch coverage.
- `tests/ipc/test_server_tunnel_boundary.py` - real listener diagnostic
coverage for the realized inode.
- `ai/tpt-backends/03_wg_tunnel_bindspace.md` - realized namespace
visibility contract.
## Human edits
The human accepted and committed the preceding reviewed composition
boundary, then requested the next step. Their stated preference for
end-to-end tests informed use of the existing real TCP listener path to
verify endpoint/server diagnostics, while focused unit coverage handles
metadata invariants without pyroute2 overhead. During review, the human
chose the final unshipped terminology: `BindspaceRef` for the
serializable non-owning reference, `Bindspace` for the live
process-local capability, `.ref` for that capability's reference, and
`bindspace_ref` at the tunnel declaration API.
They then requested the prerequisite model rename as a separate commit
before this feature. The human also replaced the module-level helper
with `TunnelledAddress.with_bindspace_ref()` and requested inline
msgspec encode/decode expressions in the serialization assertions. The
human chose not to add a second typed `.namespace` projection, and
requested native tagged `TunnelledAddress` decoding remain as a separate
design-plan follow-up. The agent applied those human-directed changes;
no direct manual source edits were observed.