Bug type

Regression (worked before, now fails)

Summary

Version: OpenClaw 2026.3.24 (cff6dc9)
Environment: Windows 10, Node v24.14.0, PowerShell
Model: kimi/k2p5

Issue Description

When calling tools that require parameters, the parameters fail to serialize and pass to the Runtime layer. Validation errors show received arguments as empty object {}.

Reproduction Steps

1. Start any session
2. Attempt to call a tool with parameters, e.g.:

   {"command": "echo test"}

3. Error returned:

   Validation failed for tool "exec":
   - command: must have required property 'command'
   Received arguments: {}
   

Test Results

Key Observations

• Parameter-less tools work fine, ruling out basic connectivity issues
• Different error messages between read and exec suggest inconsistent parameter alias handling
• Configuration appears normal (gateway.mode: local, port: 18789)

Impact

All parameter-requiring tools are non-functional, severely limiting capabilities.

Workaround

Use CLI commands as alternatives (e.g., curl instead of web_fetch).

指挥官，英文版已准备好。可直接复制到 GitHub Issues 或 Discord 反馈。

Steps to reproduce

1. Start OpenClaw session with model kimi/k2p5
2. Invoke tool: exec with payload {"command":"echo test"}
3. Observed: Error Received arguments: {}
4. Invoke tool: session_status with no payload
5. Observed: Success — returns session info
   Deterministic evidence: Parameter-less tools succeed; parameterized tools fail with empty args.

Expected behavior

Expected:
exec({"command":"echo test"}) → executes command, returns output
web_fetch({"url":"https://example.com"}) → returns page content
read({"path":"./file.md"}) → returns file content
Reference: Tool schemas define these parameters as required. Session logs show tools are invoked but parameters are not serialized to Runtime.

Actual behavior

exec({"command":"echo test"}) → Validation failed: "command: must have required property 'command'", Received arguments: {}
web_fetch({"url":"https://example.com"}) → Validation failed: "url: must have required property 'url'", Received arguments: {}
read({"path":"./file.md"}) → Error: "Missing required parameter: path alias"
session_status({}) → Success (returns session info)
Evidence: All parameterized tools fail with empty arguments {}; parameter-less tools succeed.

OpenClaw version

2026.3.24

Operating system

window 11

Install method

npm global

Model

kimi/k2p5

Provider / routing chain

User (WebChat) → OpenClaw Gateway (local, ws://127.0.0.1:18789) → kimi/k2p5 (Kimi API)

Additional provider/model setup details

No response

Logs, screenshots, and evidence

Impact and severity

No response

Additional information

No response