Effloow Lab OpenAI API Run: openai-agent-builder-evals-winddown-migration-checklist-2026

• Date: 2026-06-11T08:21:07.621449+00:00
• Model: gpt-5.5-2026-04-23
• Purpose: synthetic migration triage for Agent Builder/Evals winddown article
• Request ID: req_04d233d7834e49db8840e3ce8c9e573b
• Usage: {"input_tokens": 406, "input_tokens_details": {"cached_tokens": 0}, "output_tokens": 1400, "output_tokens_details": {"reasoning_tokens": 790}, "total_tokens": 1806}
• Prompt SHA-256: 319194c6cffeb2713ec9059ed37698d876cfb1007f97f228986b4f2bd21357f8
• Safety boundary: no confidential, customer, credential, or private data should be included in this run.

Prompt Excerpt

You are helping Effloow Lab sanity-check a migration checklist for the OpenAI Agent Builder and Evals winddown. Use only the synthetic cases below. Do not invent official OpenAI policy; classify from the information provided and mark uncertainty explicitly.

Known source facts to assume for this bounded lab check:
- OpenAI says Agent Builder and Evals will no longer be available on the OpenAI platform from November 30, 2026 onward.
- OpenAI's Evals guide says Evals becomes read-only for existing users on October 31, 2026 and is scheduled to shut down on November 30, 2026.
- OpenAI recommends Agents SDK for workflows that should continue as code.
- OpenAI recommends Workspace Agents in ChatGPT for use cases better suited to natural-language prompting.
- Workspace Agents are generally available in ChatGPT Business, Enterprise, and Edu, with admin controls and visibility, but workspace access can vary.

Synthetic cases:
1. A product support escalation workflow has custom Python tools, approval gates, trace review, and deployment through the company's API backend.
2. A revenue-ops team built a prompt-driven weekly account-summary helper that reads connected workspace docs and posts summaries to Slack on a schedule.
3. A research team uses Evals datasets and graders for prompt regression checks before releasing support-agent prompt changes.
4. A legal ops prototype depends on a visual Agent Builder flow but has no owner, no export inventory, and uncertain workspace agent access.
5. A developer-tool vendor wants a reusable migration service checklist for customers moving from a visual agent prototype to code.

Return concise JSON with: case_id, recommended_path, rationale, migration_risks, evidence_to_collect, and what_not_to_claim. Include a short final note on limitations.

Output

{
  "cases": [
    {
      "case_id": 1,
      "recommended_path": "Migrate to code using the Agents SDK.",
      "rationale": {
        "verified_observations": [
          "The workflow has custom Python tools, approval gates, trace review, and API-backend deployment.",
          "OpenAI recommends the Agents SDK for workflows that should continue as code.",
          "Agent Builder will no longer be available on the OpenAI platform from November 30, 2026 onward."
        ],
        "assumptions_uncertainties": [
          "Exact parity for approvals, tracing, and deployment behavior is not established by the provided facts."
        ]
      },
      "migration_risks": [
        "Custom tool behavior may need manual reimplementation.",
        "Approval-gate semantics may not map automatically.",
        "Trace-review workflows may change.",
        "Backend deployment and authentication dependencies need validation before cutover."
      ],
      "evidence_to_collect": [
        "Current Agent Builder flow inventory.",
        "Python tool definitions and dependencies.",
        "Approval-gate rules and owners.",
        "Trace-review requirements.",
        "API backend integration details.",
        "Regression tests and acceptance criteria."
      ],
      "what_not_to_claim": [
        "Do not claim automatic one-click migration.",
        "Do not claim feature parity for tools, approvals, tracing, or deployment.",
        "Do not claim OpenAI guarantees this migration path beyond the provided recommendation."
      ]
    },
    {
      "case_id": 2,
      "recommended_path": "Assess Workspace Agents first for the prompt-driven workspace-doc summary use case; use code/Agents SDK only if scheduling, Slack posting, or other automation requirements are not met.",
      "rationale": {
        "verified_observations": [
          "The helper is prompt-driven and reads connected workspace docs.",
          "OpenAI recommends Workspace Agents in ChatGPT for use cases better suited to natural-language prompting.",
          "Workspace Agents are generally available in ChatGPT Business, Enterprise, and Edu, with admin controls and visibility, but workspace access can vary."
        ],
        "assumptions_uncertainties": [
          "The provided facts do not confirm Slack posting or scheduled execution support in Workspace Agents.",
          "Actual workspace access for this team is uncertain."
        ]
      },
      "migration_risks": [
        "Workspace access may not be enabled for the team.",
        "Connected-doc access and permissions may differ from the prototype.",
        "Slack posting and scheduled execution may require separate implementation.",
        "Admin controls may affect deployment or visibility."
      ],
      "evidence_to_collect": [
        "ChatGPT workspace plan and admin settings.",
        "Confirmed Workspace Agents availability for the team.",
        "Required document connectors and permissions.",
        "Slack integration requirements.",
        "Scheduling requirements and acceptable manual alternatives."
      ],
      "what_not_to_claim": [
        "Do not claim Workspace Agents are available to

Limitations

This API run is a bounded lab check. It is not a production benchmark, user study, or proof that an external product works in a real customer environment.

Effloow Lab OpenAI API Run: openai-agent-builder-evals-winddown-migration-checklist-2026

• Date: 2026-06-11T08:21:51.652566+00:00
• Model: gpt-5.5-2026-04-23
• Purpose: synthetic migration triage for Agent Builder/Evals winddown article
• Request ID: req_7a44364707d94703a1555b3dfd05536e
• Usage: {"input_tokens": 411, "input_tokens_details": {"cached_tokens": 0}, "output_tokens": 1588, "output_tokens_details": {"reasoning_tokens": 366}, "total_tokens": 1999}
• Prompt SHA-256: a7b1fd00d0e8ffb97d2fd59ad45cfbac86fb425c89b5699a36f18e6cd53938fd
• Safety boundary: no confidential, customer, credential, or private data should be included in this run.

Prompt Excerpt

You are helping Effloow Lab sanity-check a migration checklist for the OpenAI Agent Builder and Evals winddown. Use only the synthetic cases below. Do not invent official OpenAI policy; classify from the information provided and mark uncertainty explicitly.

Known source facts to assume for this bounded lab check:
- OpenAI says Agent Builder and Evals will no longer be available on the OpenAI platform from November 30, 2026 onward.
- OpenAI's Evals guide says Evals becomes read-only for existing users on October 31, 2026 and is scheduled to shut down on November 30, 2026.
- OpenAI recommends Agents SDK for workflows that should continue as code.
- OpenAI recommends Workspace Agents in ChatGPT for use cases better suited to natural-language prompting.
- Workspace Agents are generally available in ChatGPT Business, Enterprise, and Edu, with admin controls and visibility, but workspace access can vary.

Synthetic cases:
1. A product support escalation workflow has custom Python tools, approval gates, trace review, and deployment through the company's API backend.
2. A revenue-ops team built a prompt-driven weekly account-summary helper that reads connected workspace docs and posts summaries to Slack on a schedule.
3. A research team uses Evals datasets and graders for prompt regression checks before releasing support-agent prompt changes.
4. A legal ops prototype depends on a visual Agent Builder flow but has no owner, no export inventory, and uncertain workspace agent access.
5. A developer-tool vendor wants a reusable migration service checklist for customers moving from a visual agent prototype to code.

Return compact JSON with: case_id, recommended_path, rationale, migration_risks, evidence_to_collect, and what_not_to_claim. Keep each field concise. Include a short final note on limitations.

Output

{
  "cases": [
    {
      "case_id": 1,
      "recommended_path": "Agents SDK / code migration",
      "rationale": "Verified: workflow uses custom Python tools, approval gates, trace review, and API-backend deployment. Given source facts, workflows that should continue as code are recommended for Agents SDK.",
      "migration_risks": [
        "Visual Agent Builder availability ends from 2026-11-30 onward",
        "Custom tools and approval behavior may need explicit code reimplementation",
        "Trace review parity is unverified in this bounded check"
      ],
      "evidence_to_collect": [
        "Current Agent Builder flow export/inventory",
        "Python tool interfaces and auth requirements",
        "Approval-gate rules",
        "Trace/review requirements",
        "Backend deployment contract"
      ],
      "what_not_to_claim": [
        "Do not claim one-click migration",
        "Do not claim feature parity for traces or approvals",
        "Do not claim Workspace Agents are appropriate for backend deployment"
      ]
    },
    {
      "case_id": 2,
      "recommended_path": "Workspace Agents candidate, with fallback to code if scheduling/Slack requirements are not supported",
      "rationale": "Verified: use case is prompt-driven and reads workspace docs, which may fit natural-language prompting in ChatGPT Workspace Agents. Uncertain: scheduled Slack posting capability and workspace access.",
      "migration_risks": [
        "Workspace access can vary by workspace/admin settings",
        "Slack posting and scheduled automation support are not established by provided facts",
        "Connected-doc permissions may differ from current setup"
      ],
      "evidence_to_collect": [
        "ChatGPT Business/Enterprise/Edu availability for the team",
        "Admin controls and workspace-agent access",
        "Required doc connectors and permissions",
        "Slack integration and scheduling requirements",
        "Acceptable manual vs automated posting workflow"
      ],
      "what_not_to_claim": [
        "Do not claim Workspace Agents can post to Slack on a schedule",
        "Do not claim all workspace users have access",
        "Do not claim no code will be needed"
      ]
    },
    {
      "case_id": 3,
      "recommended_path": "Export/archive Evals assets and rebuild regression checks outside Evals before shutdown",
      "rationale": "Verified: Evals becomes read-only for existing users on 2026-10-31 and shuts down on 2026-11-30. The team depends on datasets and graders for release regression checks.",
      "migration_risks": [
        "Loss of edit access after 2026-10-31",
        "Loss of platform availability after 2026-11-30",
        "Dataset, grader, and historical result continuity may be incomplete unless captured"
      ],
      "evidence_to_collect": [
        "All datasets, graders, prompts, and test configurations",
        "Current pass/fail thresholds",
        "Release-blocking criteria",
        "Historical baseline results",
        "Owner for replacement regression process"
      ],
      "what_not_to_claim": [
        "Do not claim Evals continues after 2026-11-30",
        "Do not claim an official replacement eval platform from the provided facts",
        "Do not claim historical results will transfer automatically"
      ]
    },
    {
      "case_id": 4,
      "recommended_path": "Triage first; no migration path can be selected until ownership, inventory, and workspace access are confirmed",
      "rationale": "Verified: prototype depends on visual Agent Builder, has no owner, no export inventory, and uncertain Workspace Agent access. Agent Builder availability ends from 2026-11-30 onward.",
      "migration_risks": [
        "Orphaned workflow may be missed before winddown",
        "No export inventory means requirements may be lost",
        "Workspace Agent access is uncertain",
        "Legal ops may have permission and audit requirements not captured"
      ],
...[truncated]

Limitations

This API run is a bounded lab check. It is not a production benchmark, user study, or proof that an external product works in a real customer environment.