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May 19, 2026 09:44
The 🪿 (goose) emoji in the CLI prompt is rendered as 1 cell wide on many terminals while unicode-width counts it as 2. This causes cursor misalignment — characters appear spaced out and backspace behaves oddly. Rather than try to detect which terminals render it correctly, just use the plain '> ' prompt everywhere in the CLI. Users who want a fancier UI can use the TUI. Fixes #8841 Signed-off-by: Douwe Osinga <douwe@squareup.com>
When an MCP tool has no parameters, tool_call.arguments is None, which
serialized to JSON null. The Anthropic API rejects null for the input
field, requiring an empty object {} instead.
This is the same fix applied to Bedrock in #8121 but was missing from
the Anthropic provider.
Fixes #9287
Signed-off-by: Douwe Osinga <douwe@squareup.com>
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fixed in #9355 |
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When an MCP tool has no parameters,
tool_call.argumentsisNone, which serialized to JSONnull. The Anthropic API rejectsnullfor theinputfield, requiring an empty object{}instead.This is the same fix applied to Bedrock in #8121 but was missing from the Anthropic provider.
Fixes #9287