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fix: correct BetaAsyncAbstractMemoryTool docstring example #1301

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fix: correct BetaAsyncAbstractMemoryTool docstring example #1301

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5711baf
fix: add helpful error message for malformed tool JSON in non-beta st…
Scottcjn Mar 26, 2026
26b1eea
fix: correct BetaAsyncAbstractMemoryTool docstring example
Scottcjn Mar 26, 2026
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9 changes: 8 additions & 1 deletion src/anthropic/lib/streaming/_messages.py
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Original file line number Diff line number Diff line change
Expand Up @@ -477,7 +477,14 @@ def accumulate_event(
json_buf += bytes(event.delta.partial_json, "utf-8")

if json_buf:
content.input = from_json(json_buf, partial_mode=True)
try:
content.input = from_json(json_buf, partial_mode=True)
except ValueError as e:
raise ValueError(
f"Unable to parse tool parameter JSON from model. "
f"Please retry your request or adjust your prompt. "
f"Error: {e}. JSON: {json_buf.decode('utf-8')}"
) from e

setattr(content, JSON_BUF_PROPERTY, json_buf)
elif event.delta.type == "citations_delta":
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10 changes: 5 additions & 5 deletions src/anthropic/lib/tools/_beta_builtin_memory_tool.py
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Original file line number Diff line number Diff line change
Expand Up @@ -166,21 +166,21 @@ class BetaAsyncAbstractMemoryTool(BetaAsyncBuiltinFunctionTool):
Example usage:

```py
class MyMemoryTool(BetaAbstractMemoryTool):
def view(self, command: BetaMemoryTool20250818ViewCommand) -> BetaFunctionToolResultType:
class MyMemoryTool(BetaAsyncAbstractMemoryTool):
async def view(self, command: BetaMemoryTool20250818ViewCommand) -> BetaFunctionToolResultType:
...
return "view result"

def create(self, command: BetaMemoryTool20250818CreateCommand) -> BetaFunctionToolResultType:
async def create(self, command: BetaMemoryTool20250818CreateCommand) -> BetaFunctionToolResultType:
...
return "created successfully"

# ... implement other abstract methods


client = Anthropic()
client = AsyncAnthropic()
memory_tool = MyMemoryTool()
message = client.beta.messages.run_tools(
message = await client.beta.messages.run_tools(
model="claude-sonnet-4-5",
messages=[{"role": "user", "content": "Remember that I like coffee"}],
tools=[memory_tool],
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