transcript-validator
Check tool-call / tool-result pairing and ordering in an LLM transcript (Anthropic, OpenAI Chat, OpenAI Responses) — Validates a message list before it is sent to Anthropic Messages, OpenAI Chat Completions or OpenAI Responses: every tool call paired with its result, results in the right place and role, ids present and unique. Built for an agent that edits, truncates or replays its own history and would otherwise get a 400. Only rules stated in the providers' documentation fail the check; anything else suspiciou
Tool call template
Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.
{
"id": 1,
"jsonrpc": "2.0",
"method": "tools/call",
"params": {
"arguments": {
"provider": "<provider>",
"messages": "<messages>"
},
"name": "transcript-validator"
}
}Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
| messages | Yes | ||
| provider | Yes | ||
| expectComplete | No | Default true: a trailing tool call without a result is a defect. Set false when the transcript is mid-loop and results are still pending. |