A short reminder can be slipped in after tool results, set by an environment variable or server config.
Per-model reminder text comes from CLAUDE_CODE_TOASTY_THIMBLE or server config; with neither set nothing is inserted.
What's wrong with this entry?
After a run of tool results, a short reminder text can be inserted into the conversation, chosen by matching the model you are using against a list of model name patterns. The text comes from the CLAUDE_CODE_TOASTY_THIMBLE environment variable, or from server-supplied config; with neither, nothing is inserted.
- Pattern matching tries an exact model name, then the base model, then the longest wildcard pattern, then a catch-all
*. - Malformed config is logged once and ignored.
- It fires at most once per model per conversation, and is reported with the model, where the text came from, and its length.
tengu_toasty_thimble
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
Related
Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.
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v2.1.234
Malformed model responses are repaired instead of crashing the session
Both mention conversation