Model unresponsive

[lockie]

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I've just had this bug triggered in the very fresh and empty session — the timer ticks for a few seconds, then stops, and nothing happens. Resetting the dialog to the first line does not help. Please see the attached video.

simplescreenrecorder-2026-06-04_21.40.52.mp4

Surprisingly enough, changing model to zai-coding-plan/glm-5.1 works.

My current config (sans API keys) is here

Version: eca-emacs: 20260602.1904 | server: eca 0.138.1 | emacs: GNU Emacs 30.2 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.51, cairo version 1.18.4) of 2026-01-18

[lockie]

A debugging session tells that the system context is 92k tokens, which makes GLM-4.7 overflow right away. I'm investigating why it is that huge (that would also explain me hitting the weekly limits of Z.AI, which never happened before)

[lockie]

Ok so the problem was I had too much MCPs which were choking the context window of 4.7 right from the first message. PEBKAC I guess, but I'd still love better error message instead of just silently dying.