Expired60% confidenceFactExact time
In Claude Code v2.1.88, the tool definition layer contains more than ten tool definitions, and this layer alone consumes approximately 3,000–5,000 tokens.
2
Sources
60%
Confidence
Medium-term (~90 days)
Relevance
7/2/2026
First Seen
Valid until: 9/30/2026(expired)
Sources
Claude Code Context Management in Practice: The Five-Layer Backpack and Token Optimization Principles
bilibilionedayhigh6/7/2026
Related Claims
Unverified成熟的编程 Agent 如 Claude Code 可能注册 30-50 个工具，仅工具定义部分就可能固定占用 6000-25000 Token77% similarUnverifiedClaude Code's System Prompt is only 2,800 tokens, while the Tool Prompt is as long as 9,400 tokens.70% similarUnverifiedClaude Code has more than 30 built-in tools, all implementing a unified interface.68% similarUnverifiedEach tool call in Claude Code contains three core fields: name (tool name), input (parameters), and tool_result (return value).66% similarUnverifiedClaude Code v2.1.261 added the /skill-doctor command, which is used to identify unused skills and calculate their context costs.65% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/49827API
curl https://kongchang.com/api/v1/knowledge/claims/49827MCP
get_claim(id=49827)