Refactor CacheHandler to avoid shadowing built-in input

[tosincarik]

Summary
Rename the input parameter in CacheHandler to avoid shadowing Python’s built‑in input, and update all call sites accordingly. Behavior is unchanged; this is a small readability and safety improvement.

Changes

• lib/crewai/src/crewai/agents/cache/cache_handler.py:
  • Rename:
    add(self, tool: str, input: str, output: Any) -> add(self, tool: str, tool_input: str, output: Any).
  • Rename:
    read(self, tool: str, input: str) -> read(self, tool: str, tool_input: str).
  • Update docstrings and cache key construction to use tool_input.
• lib/crewai/src/crewai/project/utils.py
  • Update memoization helper to call:
    cache.read(tool=meth.name, tool_input=cache_key)
cache.add(tool=meth.name, tool_input=cache_key, output=result)
• lib/crewai/src/crewai/tools/tool_usage.py
  • Update cache lookup to:
    self.tools_handler.cache.read(tool=calling.tool_name, tool_input=input_str)

Rationale

• Avoids shadowing the built‑in input, which can be confusing and can trip up linters/tooling.
• Aligns with the existing TODO in CacheHandler to rename this parameter.

---

Note

Renames CacheHandler parameter input to tool_input and updates all cache reads/writes accordingly.

• Cache:
  • Rename CacheHandler.add(tool, input, output) → add(tool, tool_input, output) and read(tool, input) → read(tool, tool_input) in crewai/agents/cache/cache_handler.py; update docstrings and cache key construction.
• Call sites:
  • Update memoization cache access in crewai/project/utils.py to use tool_input.
  • Update tool cache lookup in crewai/tools/tool_usage.py to use tool_input.

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