bug: "'additionalProperties' is required to be supplied and to be false." when `parse-prd`

[Farley-Chen]

Description

When using Task Master v0.42 in a project where the three configured models (main, research, and fallback) are all set to gpt5.2, running PRD parsing fails. The process fails during Codex CLI object generation and exits with a non-zero status code.

Steps to Reproduce

1. Initialize Task Master in a project:

   task-master init

2. Configure the three models to all use gpt5.2:

   • main: gpt5.2
   • research: gpt5.2
   • fallback: gpt5.2

3. Run PRD parsing:

   task-master parse-prd .\prd.md

Expected Behavior

task-master parse-prd .\prd.md should successfully parse the PRD and generate a structured JSON task list, then exit successfully.

Actual Behavior

The command fails with an API error (400 Bad Request). Codex CLI exits with code 1, causing Task Master to fail the PRD parsing step.

Screenshots or Logs

[ERROR] [codex-cli] Error event: unexpected status 400 Bad Request: {
  "error": {
    "message": "Invalid schema for response_format 'codex_output_schema': In context=('properties', 'metadata', 'anyOf', '0'), 'additionalProperties' is required to be supplied and to be false.",
    "type": "invalid_request_error",
    "param": "text.format.schema",
    "code": "invalid_json_schema"
  }
}
[ERROR] [codex-cli] Turn failed: unexpected status 400 Bad Request: {
  "error": {
    "message": "Invalid schema for response_format 'codex_output_schema': In context=('properties', 'metadata', 'anyOf', '0'), 'additionalProperties' is required to be supplied and to be false.",
    "type": "invalid_request_error",
    "param": "text.format.schema",
    "code": "invalid_json_schema"
  }
}
[ERROR] [codex-cli] Process exited with code 1 after 17156ms
[ERROR] Codex CLI object generation failed: Codex CLI exited with code 1 {"error":{"name":"AI_APICallError","url":"codex-cli://exec","requestBodyValues":{"prompt":"You are an AI assistant specialized in analyzing Product Requirements Documents (PRDs) and generating a structured, logically ordered, dependency-aware and sequenced list of development tasks in JSON "},"isRetryable":false,"data":{"exitCode":1,"stderr":"Warning: no last agent message; wrote empty content to C:\\Users\\31200\\AppData\\Local\\Temp\\codex-cli-qoOKJt\\last-message.txt\n","promptExcerpt":"You are an AI assistant specialized in analyzing Product Requirements Documents (PRDs) and generating a structured, logically ordered, dependency-aware and sequenced list of development tasks in JSON "}}}
[WARN] Attempt 1 failed for role main (generateObject / codex-cli): Codex CLI API error during object generation: Codex CLI exited with code 1

Environment

• Task Master version: v0.42
• Node.js version: v22.19.0
• Operating system: Windows 11
• IDE (if applicable): PowerShell

Additional Context

N/A

[github-actions]

Found 3 possible duplicate issues:

1. Invalid JSON Schema for Codex CLI Provider: Missing additionalProperties: false in subtasks schema #1522
2. bug: Invalid schema for response_format 'codex_output_schema':'required' is required to be supplied and to be an array including every key in properties. Missing 'dependencies'. #1552
3. bug: #1541

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🤖 Generated with [Task Master Bot]

[Crunchyman-ralph]

Thank you @Farley-Chen ! will fix this asap!

[Farley-Chen]

Thank you @Farley-Chen ! will fix this asap!

I found the same problem on fedora43 workstation.

[chrisp-code]

output_format.schema: For 'object' type, 'additionalProperties' must be explicitly set to false

Seeing this when running tm parse-prd using openrouter as well with:

• anthropic/claude-opus-4.6
• openai/gpt-5.2

[dayhi]

现在他修复了吗，codex完全无法使用