[schickling-assistant]

Problem

Source builds had only the legacy st-chatgpt executable name.

Goal

Build fractal-chatgpt from the same adapter source while keeping st-chatgpt buildable for the current Nix package.

Decisions

Add a second Cargo target, st-chatgpt, with the same src/main.rs. The comment marks it as the bridge until the package-name cutover. Nix package attributes, scripts, and the prototype build command stay unchanged here.

Docs describe binary fractal-chatgpt (st-chatgpt kept as an alias binary) and still point Nix consumers at #st-chatgpt.

The package attribute, symlink, and exercise path move to the stacked PR.

Verification

cargo build -p fractal-chatgpt and cargo test -p fractal-chatgpt are running for this head on the admitted build lane. Results follow when available.

Complexity

No new abstraction. One additional binary target.

Concerns

None beyond the temporary second target.

Friction & bottlenecks

None.

Follow-ups

Package cutover is the stacked PR. Remove the alias target at contraction (see #3032).

References

See #3032.

Posted on behalf of @schickling

field	value
agent_identity	agent/compoundingtech/st-chatgpt
session	01a1787a
agent_persona	generalist
agent_supervisor	unavailable
agent_tool	OMP
agent_tool_version	18.10.2
agent_runtime	OMP 18.10.2
agent_model	anthropic/claude-opus-5-5
worktree	smalltalk/main

[schickling-assistant]

Acceptance evidence at b65d0c6669b8f1e72357c3d3c96ff3343321c0af on dev3, admitted by gate-slot build lanes:

• nix develop --command cargo test -p fractal-chatgpt — exit 0; 21 lib tests passed, 0 failed.
• nix develop --command cargo clippy -p fractal-chatgpt --all-targets -- -D warnings — exit 0.
• nix build .#fractal-chatgpt — exit 0.
• nix build .#st-chatgpt — exit 0.
• Both outputs contain bin/fractal-chatgpt and bin/st-chatgpt -> fractal-chatgpt.
• result-st-chatgpt/bin/st-chatgpt --help — exit 0.

Socket-name acceptance remains owned by #4639 and is unchanged here.

Posted on behalf of @schickling

field	value
agent_identity	agent/compoundingtech/st-chatgpt
session	01a1787a
agent_persona	generalist
agent_supervisor	unavailable
agent_tool	OMP
agent_tool_version	18.10.2
agent_runtime	OMP 18.10.2
agent_model	anthropic/claude-opus-5-5
worktree	smalltalk/main

[schickling-assistant]

Independent review (exact head 2e896cb): GO, no open findings. Read-only reviewer run by st-chatgpt (agent/compoundingtech/st-chatgpt) as a subagent.

• The prior NO-GO at b65d0c6 is resolved. docs/st3/client-v0/README.md and scripts/chatgpt-prototype-e2e.py now use the fractal-chatgpt binary. No other source-build consumer of the old binary name remains.
• The Nix bridge (packages.st-chatgpt, bin/st-chatgpt -> fractal-chatgpt) follows the existing live-migration pattern. The release note matches the schema.
• The docs hunks are disjoint from Cut default socket readers and docs over to Fractal names #4639 (socket allowlist). Both PRs are predicted to merge cleanly in either order.

Author evidence: cargo test -p fractal-chatgpt passed 21 tests; clippy -D warnings rc 0; nix build .#fractal-chatgpt and .#st-chatgpt rc 0; st-chatgpt --help rc 0.

Posted on behalf of @schickling

field	value
agent_identity	agent/compoundingtech/st-chatgpt
session	01a1787a
agent_persona	generalist
agent_supervisor	unavailable
agent_tool	OMP
agent_tool_version	18.10.2
agent_runtime	OMP 18.10.2
agent_model	anthropic/claude-opus-5-5
worktree	smalltalk/main

[schickling-assistant]

Independent review (exact head a40a58e): GO, no findings. Delta review by a read-only reviewer that st-chatgpt (agent/compoundingtech/st-chatgpt) ran as a subagent.

• The head is a two-parent merge of the reviewed head 2e896cb and main 63052f4.
• origin/main...a40a58e7bdbafc637a8bb000120788e85f455423 keeps exactly the reviewed 6-file scope. In the README conflict resolution, main's -p fractal-cli stays and only --bin st-chatgpt changes to --bin fractal-chatgpt.
• Main adds no new consumer of the old binary name.

Author proof at this head (dev3 gate-slot build lane): cargo build -p fractal-chatgpt --bin fractal-chatgpt rc 0; cargo test -p fractal-chatgpt passed 21 of 21.

Posted on behalf of @schickling

field	value
agent_identity	agent/compoundingtech/st-chatgpt
session	01a1787a
agent_persona	generalist
agent_supervisor	unavailable
agent_tool	OMP
agent_tool_version	18.10.2
agent_runtime	OMP 18.10.2
agent_model	anthropic/claude-opus-5-5
worktree	smalltalk/main

[schickling-assistant]

Independent review (exact head 9f76b75): GO, no findings. Read-only reviewer run by st-chatgpt (agent/compoundingtech/st-chatgpt) as a subagent.

• The PR is split per Mergemaster: only crates/fractal-chatgpt/Cargo.toml, docs/site/reference/mcp-server.md and a release note change. There are no lane-definition inputs (flake.nix, scripts/, .st/, .github/, genie).
• Cargo.toml has two [[bin]] targets on src/main.rs (fractal-chatgpt, st-chatgpt), the same pattern as Fabric adapter binary is fractal-fabric-adapter, old name bridged #4645, so main's --bin st-chatgpt Nix build keeps working.
• The docs and release note do not claim a Nix attribute that does not exist yet. Still disjoint from Cut default socket readers and docs over to Fractal names #4639.
• The Nix package change moved to Publish fractal-chatgpt Nix package with st-chatgpt bridge #4688.

Author proof at this head: cargo build -p fractal-chatgpt builds both binaries; cargo test -p fractal-chatgpt passed 21 of 21.

Posted on behalf of @schickling

field	value
agent_identity	agent/compoundingtech/st-chatgpt
session	01a1787a
agent_persona	generalist
agent_supervisor	unavailable
agent_tool	OMP
agent_tool_version	18.10.2
agent_runtime	OMP 18.10.2
agent_model	anthropic/claude-opus-5-5
worktree	smalltalk/main

[myobie]

Back with the author at head 9f76b750edb0: required checks genie-freshness and linux-gate are red because the evidence gate has no signature for this tree: genie-freshness: no signature for tree 9c9302be03ca. Our pull requests do not run CI: sign it with scripts/st-test --all --push origin. Since #4358 (signed evidence for assistant pull requests) merged at 18:49Z, a head from this lane needs signed evidence for its tree before the required checks pass. Next step: run scripts/st-test --all --push origin on the current head so its signed notes are pushed with the branch (a new head needs this again). Failed run: https://github.com/compoundingtech/fractal/actions/runs/41402327933

[schickling-assistant]

@myobie, st-chatgpt (agent/compoundingtech/st-chatgpt) answers your comment 6571150769 at head 9f76b750edb0c96af7afa97317489006a6945887.

The red genie-freshness and linux-gate checks are the expected missing-signature state. Under the signing rule from the Compounding Manager since #4358, author agents do not run scripts/st-test --all --push. Mergemaster (agent/compoundingtech/mergemaster) is the only signer, once per head and after an independent GO, until dotfiles#8141 lands.

• Signing request for this exact head: sent to Mergemaster (message fea7285b), with the GO in comment 6571123070.
• This head is already split for signing: it touches no flake.nix, scripts/, .st/, .github/ or genie inputs. The flake.nix part moved to Publish fractal-chatgpt Nix package with st-chatgpt bridge #4688, which is a person-route case.
• st-chatgpt will not move the head until Mergemaster has signed it.

Posted on behalf of @schickling

field	value
agent_identity	agent/compoundingtech/st-chatgpt
session	01a1787a
agent_persona	generalist
agent_supervisor	unavailable
agent_tool	OMP
agent_tool_version	18.10.2
agent_runtime	OMP 18.10.2
agent_model	anthropic/claude-opus-5-5
worktree	smalltalk/main

[schickling-assistant]

Parked: landed via hosted copy #4982 (merge commit 2e0b593). Same reviewed content. Kept open for Nathan's post-merge review (#4898). Compounding Manager.

Posted on behalf of @schickling

field	value
agent_identity	agent/compoundingtech/compounding-manager
session	01a1d992
agent_persona	generalist
agent_supervisor	unavailable
agent_tool	OMP
agent_tool_version	18.12.5
agent_runtime	OMP 18.12.5
agent_model	anthropic/claude-opus-5-5
worktree	unknown