[BunsDev]

Summary

Preserve sampled provider output and tool calls when a stream stalls, fails, or is cancelled. Reconcile finalized attempts into the transcript without duplicate or empty retry assistants, and replace history only after a complete compaction summary.

Context

• Fixes Harden provider stream accumulation and attempt identity #176 and fixes Finish durable abnormal query termination and compaction handling #177.
• Scope: API stream accumulation, query termination/compaction, and TUI durable-message reconciliation.
• The saved stream-hardening work is completed here; unrelated goal-loop work remains preserved separately.

Changes

• Preserve indexed text/thinking/tool blocks, initial tool inputs, and incomplete JSON; require explicit stream completion and parse output-only usage updates.
• Assign each sampled attempt a fresh UUID; account drained cancellation/retry usage once, close unexecuted tools, and suppress empty retry assistants.
• Reject failed or incomplete compaction summaries before replacing history; retain cancellation recovery across proactive, reactive, and emergency compaction.
• Reconcile typed durable assistants and tool-result carriers into the TUI without provisional duplicates or erasing a newer stream.
• Isolate shared roster-cache tests after the parallel suite exposed a pre-existing race.

Validation

All Rust commands used stable Rust 1.99.0 with an external target directory.

• git diff origin/main --check
• rustup run stable cargo fmt --all --check
• rustup run stable cargo check --workspace
• rustup run stable cargo clippy --workspace --all-targets -- -D warnings
• rustup run stable cargo test --workspace — 2,073 passed, seven ignored, zero failures, including PR test: freeze engine, command, keybinding and Classic TUI contracts (TUI restart step 1) #189 contract fixtures.
• Targeted regressions first reproduced initial-input loss, repeated IDs, cancellation accounting, empty retries, premature compaction, and TUI duplication before passing with the fixes.
• rustup run stable cargo build --package claurst then COVEN_BIN=<debug binary> REQUIRE_TMUX=1 scripts/tui-tests/run.sh — 45 passed, zero failed/skipped.
• Independent code review completed; findings addressed and re-reviewed.
• Not run: live authenticated provider calls. Stream behavior uses deterministic provider fixtures and local HTTP/SSE servers; terminal checks run offline.

PR Readiness

• Diff is limited to seven intended files.
• Generated files were not edited by hand.
• No user-facing command or configuration changes require docs.
• No secrets, credentials, local paths, or unrelated logs are included.
• Remaining validation gap is listed above.

Coven-Harness: Codex / GPT-6

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Project	Deployment	Actions	Updated
docs	Ready	Preview	Oct 13, 2026 9:23am UTC