[linkerlin]

Summary

未完成 run 的软缺口上，第一次 swarm_tick 和 loop_fuse=pending_redirect_loop 现在保留 gate_soft_continue=true，与 boot / status 同一口径。这个键不写成 false。只认该键的宿主因此能看见软缺口；停 tick 仍看 tick_again、retryable 和 next_action。

Unfinished soft-gap swarm_tick redirects and the fuse envelope now keep gate_soft_continue=true, the same advisory bit boot and status already set. The key is never written false. Hosts that only look for that key see the soft gap; stop-tick stays on tick_again, retryable, and next_action.

What changed

• _pending_tick_redirect 仍走 apply_soft_gap。_prefer_solidify_steps(hold_tick=True) 不再 pop 掉 gate_soft_continue，并再写一次 true。第一次重定向与保险丝都如此。
• 没有软缺口的重定向仍不写这个键。doctor 仍不写 gate_soft_continue / session_not_failed（fix(mcp): steer a soft doctor smoke at solidify #25–fix(mcp): drop doctor --fix from soft solidify steers #28 的健康位口径不动）。
• tick_again=false、retryable=false、保险丝的 ok=false、session_not_failed、preserve 三元组、evolver doctor --fix 的延后（fix(mcp): drop doctor --fix from soft solidify steers #28/fix(mcp): drop doctor --fix from unfinished tick and fuse envelopes #29）不动。不结算这条 run，不写 Parent baseline，不放宽固化门，不执行 --fix。evolver bench freeze / evolver bench baseline 的清单行为与 master 相同。

How to test

1. uv run pytest tests/test_mcp_host_usability_pending_smoke.py tests/test_mcp_host_usability_p0.py tests/test_mcp_host_usability_p1.py tests/test_mcp_host_usability_p2.py tests/test_mcp_host_usability_polish.py tests/test_swarm.py::TestTick tests/test_swarm.py::TestBootAndStatus tests/test_mcp_server.py tests/test_mcp_protocol.py tests/test_open_box_setup_doctor.py
2. uv run ruff check src tests && uv run ruff format --check src tests && uv run mypy src
3. 未完成软缺口上，第一次 tick 与保险丝的 gate_soft_continue 为 true，不是 false，也不是缺席。没有软缺口的重定向、以及没有未完成 run 的 boot，形状不变。doctor 的未完成软路径仍不带这个键。

Risk

Low -- MCP 宿主回执旗标。不改固化门、Parent baseline、保险丝 ok，也不把软缺口收成硬门。只看 gate_soft_continue=true、完全不看 tick_again / next_action / ok 的宿主，在 tick 与保险丝之后仍可能再 tick；写成 false 会重开 DEBUG #67。

Harness/evaluator governance

Upstream governance surface: swarm instrument wording and unfinished-run tick envelopes only
Downstream EvoX impact: N/A
Rollout-local scope: N/A
Promotion boundary: N/A
Evaluator mismatch sets: N/A
Non-regression evidence: pending-smoke, sibling usability, tick/boot, MCP protocol, and open-box tests
Fix-severity review: low
Owner approval: N/A
Security boundary: does not execute evolver doctor --fix, does not write a Parent baseline, and does not relax the solidify gate
Rollback: revert this commit
Live promotion: no
Autonomous evaluator self-editing: no

Self-check

• Tests added or updated to cover the new behavior; gates pass locally: related pytest suites, uv run ruff check src tests, uv run ruff format --check src tests, uv run mypy src.

Related

Follows #29. That change left the first unfinished-run tick and the fuse omitting gate_soft_continue. DEBUG #75.

  

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