[BUG] TypeError: unhashable type: 'dict' in Delegate Tool

[antoinedelplace]

Description

TypeError: unhashable type: 'dict'

Traceback:

in crewai\task.py(320)increment_delegations()

crewAI/src/crewai/task.py

Line 320 in 627b9f1

self.processed_by_agents.add(agent_name)

in crewai\tools\tool_usage.py(159)_use()

crewAI/src/crewai/tools/tool_usage.py

Line 155 in 627b9f1

self.task.increment_delegations(coworker)

coworker here is not a string. It is a dict like that: {'description': 'Chief Technology Officer (CTO)', 'type': 'str'}. I don't know why.
Can you help ?

Steps to Reproduce

Create 2 agents, one should be able to delegate to the other.
Create 1 task.

Expected behavior

No error

Screenshots/Code snippets

.

Operating System

Windows 11

Python Version

3.12

crewAI Version

0.86.0

crewAI Tools Version

0.17.0

Virtual Environment

Venv

Evidence

I encountered an error while trying to use the tool. This was the error: unhashable type: 'dict'.
 Tool Delegate work to coworker accepts these inputs: Tool Name: Delegate work to coworker
Tool Arguments: {'task': {'description': 'The task to delegate', 'type': 'str'}, 'context': {'description': 'The context for the task', 'type': 'str'}, 'coworker': {'description': 'The role/name of the coworker to delegate to', 'type': 'str'}}

Possible Solution

I don't know how the coworkers are found.
What is calling.arguments.get("coworker")?

Additional context

.

[naredlarohithreddy]

@antoinedelplace got any solution for the issue, i think we need to provide the context of one agent to other agent in form the some structure , so that the second agent will know what to do when the delegation occurs.