18 replies

Kimi: Tool Validation Error: kimi-coding/k2p5: raistlin28

OpenClaw Support: kimi-coding/k2p5 Tool Validation Error — Diagnostic Report

---

1. Summary

After upgrading from a custom

kimi-code

kimi-code

provider (using

openai-completions

openai-completions

adapter) to the built-in

kimi-coding

kimi-coding

provider (using

anthropic-messages

anthropic-messages

adapter) per the guidance in Issue #22409 / PR #22526, all tool-using agent interactions fail with 23 validation errors. The Kimi Coding API endpoint rejects tool definitions sent in Anthropic format, expecting OpenAI format instead.

Pure text chat (no tools) works correctly on

kimi-coding/k2p5

kimi-coding/k2p5

with

anthropic-messages

anthropic-messages

.

---

2. Error Message (verbatim, truncated)

[Error: request could not be processed] {
  "error": {
    "message": "23 validation errors:\n
      {'type': 'missing', 'loc': ('body', 'tools', 0, 'function'), 'msg': 'Field required',
       'input': {'name': 'read', 'description': 'Read the contents of a file. Supports text files and images (jpg, png, gif, webp). Images are sent as attachments. For text files, output is truncated to 2000 lines or 50KB (whichever is hit first). Use offset/limit for large files. When you need the full file, continue with offset until complete.',
       'input_schema': {'type': ...

[Error: request could not be processed] {
  "error": {
    "message": "23 validation errors:\n
      {'type': 'missing', 'loc': ('body', 'tools', 0, 'function'), 'msg': 'Field required',
       'input': {'name': 'read', 'description': 'Read the contents of a file. Supports text files and images (jpg, png, gif, webp). Images are sent as attachments. For text files, output is truncated to 2000 lines or 50KB (whichever is hit first). Use offset/limit for large files. When you need the full file, continue with offset until complete.',
       'input_schema': {'type': ...

All 23 built-in tools (read, exec, web_search, cron, etc.) produce identical validation errors. Each error says

'function'

'function'

field is required at

body.tools[N]

body.tools[N]

.

---

3. Environment & Configuration

3.1 OpenClaw Version

meta.lastTouchedVersion: "2026.2.26"
wizard.lastRunVersion: "2026.2.26"
wizard.lastRunCommand: "doctor"
wizard.lastRunMode: "local"

meta.lastTouchedVersion: "2026.2.26"
wizard.lastRunVersion: "2026.2.26"
wizard.lastRunCommand: "doctor"
wizard.lastRunMode: "local"

FotC�

Friends of the Crustacean 🦞🤝•3d ago•

18 replies

Raistlin

Kimi: Tool Validation Error: kimi-coding/k2p5: raistlin28

OpenClaw Support: kimi-coding/k2p5 Tool Validation Error — Diagnostic Report

---

1. Summary

After upgrading from a custom

kimi-code

kimi-code

provider (using

openai-completions

openai-completions

adapter) to the built-in

kimi-coding

kimi-coding

provider (using

anthropic-messages

anthropic-messages

kimi-coding/k2p5

kimi-coding/k2p5

with

anthropic-messages

anthropic-messages

.

---

2. Error Message (verbatim, truncated)

[Error: request could not be processed] {
  "error": {
    "message": "23 validation errors:\n
      {'type': 'missing', 'loc': ('body', 'tools', 0, 'function'), 'msg': 'Field required',
       'input': {'name': 'read', 'description': 'Read the contents of a file. Supports text files and images (jpg, png, gif, webp). Images are sent as attachments. For text files, output is truncated to 2000 lines or 50KB (whichever is hit first). Use offset/limit for large files. When you need the full file, continue with offset until complete.',
       'input_schema': {'type': ...

[Error: request could not be processed] {
  "error": {
    "message": "23 validation errors:\n
      {'type': 'missing', 'loc': ('body', 'tools', 0, 'function'), 'msg': 'Field required',
       'input': {'name': 'read', 'description': 'Read the contents of a file. Supports text files and images (jpg, png, gif, webp). Images are sent as attachments. For text files, output is truncated to 2000 lines or 50KB (whichever is hit first). Use offset/limit for large files. When you need the full file, continue with offset until complete.',
       'input_schema': {'type': ...

All 23 built-in tools (read, exec, web_search, cron, etc.) produce identical validation errors. Each error says

'function'

'function'

field is required at

body.tools[N]

body.tools[N]

.

---

3. Environment & Configuration

3.1 OpenClaw Version

meta.lastTouchedVersion: "2026.2.26"
wizard.lastRunVersion: "2026.2.26"
wizard.lastRunCommand: "doctor"
wizard.lastRunMode: "local"

meta.lastTouchedVersion: "2026.2.26"
wizard.lastRunVersion: "2026.2.26"
wizard.lastRunCommand: "doctor"
wizard.lastRunMode: "local"

Kimi: Tool Validation Error: kimi-coding/k2p5: raistlin28

OpenClaw Support: kimi-coding/k2p5 Tool Validation Error — Diagnostic Report

1. Summary

2. Error Message (verbatim, truncated)

3. Environment & Configuration

3.1 OpenClaw Version

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Kimi: Tool Validation Error: kimi-coding/k2p5: raistlin28

OpenClaw Support: kimi-coding/k2p5 Tool Validation Error — Diagnostic Report

1. Summary

2. Error Message (verbatim, truncated)

3. Environment & Configuration

3.1 OpenClaw Version

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