Daily Edition Sources +5

Ramón Medrano Llamas Let Gemini CLI Breathe

A Gemini CLI contributor fixed a scheduler starvation path by changing how parallel tool waves yield back to the event loop.

A rough marker diagram titled One Yield Saved The Tool Wave, showing a stuck loop breaking into source cards for Gemini CLI PR #28063, scheduler code, ignore-scripts, and a parallel tools test.
Diagram Punkone scheduler yield lets the Gemini CLI tool wave breathe.
repo google-gemini/gemini-cli evidence
5 source signals 1 repo commit be7ba2c
Evidence: commit be7ba2c / June 22, 2026 / Daily Edition
Open Edition Evidence below

Ramón Medrano Llamas opened Gemini CLI PR #28063 with two public repairs in one patch: failed workspace publishing and a macOS hang during waves of parallel tool calls.

The public trail

The merged commit be7ba2c22 changes packages/core/src/scheduler/scheduler.ts so waiting tool calls yield through setTimeout(resolve, 10) instead of queueMicrotask. The PR says the old loop could starve timers, I/O, child-process completion, and rendering callbacks.

The patch also adds --ignore-scripts to the release publishing action for core, CLI, and A2A packages. That keeps workspace package publishing from re-running package lifecycle scripts in the wrong package context.

Why this contribution matters

This is not a launch feature. It is the kind of contribution that makes an agent CLI usable when the model asks for several tool calls at once. The user-facing effect is simple: a tool wave should keep moving, the release path should keep shipping, and the terminal should not sit hot at 100 percent CPU.

The integration test change is part of the story. PR #28063 updates the parallel-tool test fixture, waits longer for approval and final output, and records PTY output on failure. The repair came with a way to see the failure next time.

The conversation to open

The constructive follow-up for Medrano Llamas and Gemini CLI maintainers is whether scheduler starvation should become a visible diagnostic: when a tool wave waits on approval, child processes, or I/O, can the CLI show what it is yielding for before users assume the agent froze?

Evidence Trail

Receipts below the story

The article above is the public narrative. This section keeps the source trail, limits, and reporting notes on the same page.

Edition
DateJune 22, 2026
LaneDaily Edition
Confidence78%
Sources5
Reposgoogle-gemini/gemini-cli

Reporter Notes

  • The PR body itself supplies the mechanism: microtask yielding could starve the macrotask queue while the scheduler waited on active calls.
  • The companion treats the contributor story as maintenance work with user-facing consequence, not as a hero profile.
  • The publish-action change is included because it shows the same contributor patch also repaired the package-release path.

Primary Evidence

Evidence Limits

  • The article uses public professional GitHub activity only.
  • The evidence does not prove how many users hit the scheduler hang.
  • The PR is a maintenance repair, not a product launch or public roadmap statement.
  • The article does not infer private motivation, employment status, or identity beyond the public GitHub contribution record.
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