Avoid retrying ephemeral stack replacements

[ytallo]

Summary

• avoid --force in the fresh ephemeral stack bootstrap
• prevent a retry after a transient Registry error from restarting workers that already booted
• retain the fail-closed runtime version verification added in Fix ephemeral target worker repinning #867

Validation

• bash -n harness/tests/e2e/run-shadow-control-ci.sh
• python3 .github/scripts/tests/test_harness_e2e_shadow_contract.py
• PYTHONPATH=.github/scripts python3 -m unittest discover -s .github/scripts/tests -p "test_*.py"

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
workers	Ready	Preview	Aug 20, 2026 4:59pm
workers-tech-spec	Ready	Preview	Aug 20, 2026 4:59pm

[coderabbitai]

Warning

Review limit reached

@ytallo, you've reached your PR review limit, so we couldn't start this review.

Next review available in: 18 minutes

Limit details: You’ve used the included review currently available.

You've used all free OSS reviews for now. Wait for the free limit to reset to keep reviewing this public repository.

How can I continue?

Wait for the limit to reset, then comment @coderabbitai review or push new commits to the PR.

An organization admin can change what happens after included review limits in Billing.

How do review limits work?

CodeRabbit enforces per-developer PR review limits within each organization.

For paid Pro and Pro+ reviews, CodeRabbit uses a developer's included PR review attempts over the past 7 days to set the current hourly allowance. At typical activity levels, the full plan allowance applies. Higher sustained activity can lower the allowance until earlier attempts leave the 7-day window.

Please refer docs for additional details.

Review details

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: aaa559ba-7191-45f7-8a80-21ba77812d90

📥 Commits

Reviewing files that changed from the base of the PR and between ceacb4f and 939ae45.

⛔ Files ignored due to path filters (13)

• crates/provider-integration-testkit/Cargo.lock is excluded by !**/*.lock
• provider-anthropic/Cargo.lock is excluded by !**/*.lock
• provider-claude-code/Cargo.lock is excluded by !**/*.lock
• provider-deepseek/Cargo.lock is excluded by !**/*.lock
• provider-github-copilot/Cargo.lock is excluded by !**/*.lock
• provider-kimi/Cargo.lock is excluded by !**/*.lock
• provider-llamacpp/Cargo.lock is excluded by !**/*.lock
• provider-openai-codex/Cargo.lock is excluded by !**/*.lock
• provider-openai/Cargo.lock is excluded by !**/*.lock
• provider-opencode-go/Cargo.lock is excluded by !**/*.lock
• provider-openrouter/Cargo.lock is excluded by !**/*.lock
• provider-xai/Cargo.lock is excluded by !**/*.lock
• provider-zai/Cargo.lock is excluded by !**/*.lock

📒 Files selected for processing (2)

• .github/scripts/tests/test_harness_e2e_shadow_contract.py
• harness/tests/e2e/run-shadow-control-ci.sh

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands.}

[github-actions]

skill-check — worker

0 verified, 62 skipped (no docs/).

Layer	Result
structure	✓
vale	✓
ai	✓
render	✓

Four for four. Nicely done.