fix: improve startup and feedback diagnostics - #242
Merged
Conversation
ejgallego
force-pushed
the
codex/issue-239-diagnostics
branch
3 times, most recently
from
August 30, 2026 18:21
8c54c0b to
f4be291
Compare
ejgallego
force-pushed
the
codex/issue-239-diagnostics
branch
2 times, most recently
from
August 30, 2026 18:32
291be14 to
543f856
Compare
ejgallego
marked this pull request as ready for review
August 30, 2026 18:41
ejgallego
force-pushed
the
codex/issue-239-diagnostics
branch
from
August 30, 2026 19:51
543f856 to
e14ecec
Compare
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
This PR makes backend startup failures such as #239 actionable and keeps feedback provenance trustworthy. Beam now captures a bounded stderr tail for startup and worker-exit failures, refreshes the source commit when reusing an identical installed runtime, and reports the full source commit plus runtime payload in feedback cards.
The stderr capture remains isolated from MCP stdio, runs on a dedicated task, is capped at 16 KiB, and preserves valid UTF-8 when truncation lands inside a character. Runtime reuse updates only source provenance, preserving the original creation-toolchain metadata.