{
  "schema_version": "1.0",
  "experiment_id": "AIEL-2026-0002",
  "title": {
    "en": "Open-Meteo HTTP 429 failures limited to Google Apps Script time-driven triggers and Cloudflare Worker mitigation",
    "ja": "Google Apps Script時間主導トリガーでのみ発生したOpen-Meteo HTTP 429とCloudflare Workerによる回避"
  },
  "status": "COMPLETED",
  "timestamps": {
    "created_at": "2026-08-22T13:40:00+09:00",
    "started_at": null,
    "observed_at": null,
    "completed_at": null,
    "published_at": "2026-08-22T04:46:25+00:00",
    "last_verified": null,
    "updated_at": "2026-08-22T04:46:25+00:00"
  },
  "objective": {
    "summary_en": "Determine why the same Google Apps Script collection function succeeds when run manually but receives HTTP 429 from Open-Meteo when invoked by a time-driven trigger, and identify a practical mitigation without fabricating the provider's internal rate-limit key.",
    "summary_ja": "同一のGoogle Apps Script収集関数が手動実行では成功する一方、時間主導トリガーではOpen-MeteoからHTTP 429を受ける理由を切り分け、プロバイダー内部のレート制限キーを推測で断定せずに実用的な回避策を確認する。",
    "success_criteria": [
      "Distinguish an application-code-path problem from an execution/network-context-dependent problem.",
      "Establish whether a mitigation restores scheduled collection in the investigated workflow."
    ],
    "partial_success_criteria": [],
    "failure_criteria": []
  },
  "scope": {
    "included": [
      "Google Apps Script manual execution versus time-driven trigger execution",
      "Observed HTTP response status from Open-Meteo",
      "Temporary comparison of outward network path using an external IP-check endpoint",
      "Inspection of trigger-only request behavior in the collection code",
      "Cloudflare Worker relay mitigation"
    ],
    "excluded": [
      "Reverse-engineering Open-Meteo's undocumented rate-limit key",
      "Publishing exact egress IP addresses, spreadsheet identifiers, coordinates, account identifiers, credentials, or household telemetry"
    ],
    "limitations": [
      "Exact original execution timestamps were not retained in the legacy record.",
      "The exact Open-Meteo rate-limit key was not independently established.",
      "The public record does not retain the exact post-mitigation scheduled-run log or Cloudflare Worker source code."
    ]
  },
  "environment": {
    "hardware": [],
    "software": [
      "Google Apps Script",
      "Open-Meteo API",
      "Cloudflare Worker relay"
    ],
    "firmware": [],
    "network": {
      "manual_execution_path": "Observed to expose IPv6 through a temporary external IP-check endpoint; exact address withheld.",
      "scheduled_trigger_path": "Observed to expose a different IPv4 through a temporary external IP-check endpoint; exact address withheld."
    },
    "environmental_conditions": []
  },
  "hypotheses": [
    {
      "id": "H-001",
      "statement_en": "The 429 response is caused by a trigger-only extra Open-Meteo request or a materially different application code path.",
      "statement_ja": "HTTP 429は、トリガー時だけ発生する追加のOpen-Meteoリクエスト、または実質的に異なるアプリケーションコードパスによって生じる。",
      "status": "NOT_SUPPORTED",
      "evidence_refs": [
        "O-001",
        "O-002",
        "O-005"
      ]
    },
    {
      "id": "H-002",
      "statement_en": "The failure depends on execution or network context rather than the collection function's normal request logic.",
      "statement_ja": "障害は収集関数の通常のリクエストロジックよりも、実行環境またはネットワークコンテキストに依存する。",
      "status": "SUPPORTED",
      "evidence_refs": [
        "O-001",
        "O-002",
        "O-003",
        "O-004",
        "O-005"
      ]
    },
    {
      "id": "H-003",
      "statement_en": "Open-Meteo's rate limit is keyed specifically to the network identity or route seen during scheduled execution.",
      "statement_ja": "Open-Meteoのレート制限は、時間主導トリガー実行時に見えるネットワーク識別子または経路そのものをキーとしている。",
      "status": "UNTESTED",
      "evidence_refs": [
        "O-004"
      ]
    }
  ],
  "procedures": [
    {
      "id": "P-001",
      "description_en": "Execute the same collection function manually and through a time-driven trigger, then compare HTTP outcomes and diagnostic execution context.",
      "description_ja": "同一の収集関数を手動実行と時間主導トリガー実行で動かし、HTTP結果と診断上の実行コンテキストを比較する。"
    },
    {
      "id": "P-002",
      "description_en": "Temporarily observe outward network identity, inspect retry/request logic, then route the provider request through a Cloudflare Worker and observe operational recovery.",
      "description_ja": "一時的に外向きネットワーク識別子を観測し、リトライ・リクエストロジックを確認した上で、プロバイダーへのリクエストをCloudflare Worker経由に切り替え、運用復旧を観測する。"
    }
  ],
  "actions": [
    {
      "id": "A-001",
      "type": "SOFTWARE_EXECUTION",
      "state": "EXECUTED",
      "timestamp": null,
      "description_en": "Ran the Apps Script collection function manually.",
      "description_ja": "Apps Scriptの収集関数を手動実行した。"
    },
    {
      "id": "A-002",
      "type": "SOFTWARE_EXECUTION",
      "state": "EXECUTED",
      "timestamp": null,
      "description_en": "Allowed the same collection function to run from its time-driven trigger.",
      "description_ja": "同一の収集関数を時間主導トリガーから実行した。"
    },
    {
      "id": "A-003",
      "type": "SOFTWARE_CHANGE",
      "state": "EXECUTED",
      "timestamp": null,
      "description_en": "Changed the Open-Meteo request path to a Cloudflare Worker relay while preserving timestamp-based deduplication and bounded backfill logic.",
      "description_ja": "タイムスタンプベースの重複排除と限定バックフィルロジックを維持したまま、Open-Meteoへのリクエスト経路をCloudflare Workerリレーへ変更した。"
    }
  ],
  "observations": [
    {
      "id": "O-001",
      "timestamp": null,
      "description_en": "The collection function succeeded when run manually and Open-Meteo returned HTTP 200.",
      "description_ja": "収集関数を手動実行した場合は成功し、Open-MeteoからHTTP 200が返った。"
    },
    {
      "id": "O-002",
      "timestamp": null,
      "description_en": "The same collection function returned HTTP 429 with a daily API request limit message when invoked by a time-driven trigger.",
      "description_ja": "同一の収集関数を時間主導トリガーから実行すると、daily API request limitメッセージを伴うHTTP 429が返った。"
    },
    {
      "id": "O-003",
      "timestamp": null,
      "description_en": "Diagnostic logging distinguished manual runs as MANUAL and scheduled runs as TRIGGER using the trigger event object.",
      "description_ja": "診断ログでは、トリガーイベントオブジェクトを用いて手動実行をMANUAL、スケジュール実行をTRIGGERとして識別できた。"
    },
    {
      "id": "O-004",
      "timestamp": null,
      "description_en": "A temporary external IP check showed different outward network paths: the manual run exposed IPv6 and the scheduled run exposed a different IPv4. Exact addresses are withheld.",
      "description_ja": "一時的な外部IP確認では外向きネットワーク経路が異なり、手動実行はIPv6、スケジュール実行は別のIPv4を示した。正確なアドレスは非公開とした。"
    },
    {
      "id": "O-005",
      "timestamp": null,
      "description_en": "Inspection of the collection code found no trigger-only extra Open-Meteo request, and the retry loop stopped on HTTP 429 rather than repeatedly calling the provider.",
      "description_ja": "収集コードを確認したところ、トリガー時だけ増えるOpen-Meteoリクエストは見つからず、HTTP 429時にはプロバイダーへの反復呼び出しを続けずリトライループが停止していた。"
    },
    {
      "id": "O-006",
      "timestamp": null,
      "description_en": "The operator reported that the scheduled collection issue was resolved after routing Open-Meteo requests through a Cloudflare Worker relay.",
      "description_ja": "Open-MeteoリクエストをCloudflare Workerリレー経由に変更した後、スケジュール収集の運用問題が解消したとオペレーターが報告した。"
    },
    {
      "id": "O-007",
      "timestamp": null,
      "description_en": "The collection design retained timestamp-based deduplication and a bounded 72-hour backfill window.",
      "description_ja": "収集設計では、タイムスタンプベースの重複排除と72時間に限定したバックフィル期間が維持された。"
    }
  ],
  "claims": [
    {
      "id": "C-001",
      "statement_en": "The observed failure depended on execution or network context rather than a different ordinary application request path.",
      "statement_ja": "観測された障害は、通常のアプリケーションリクエスト経路の違いではなく、実行環境またはネットワークコンテキストに依存していた。",
      "evidence_state": "INFERRED",
      "confidence": "HIGH",
      "evidence_refs": [
        "O-001",
        "O-002",
        "O-003",
        "O-004",
        "O-005"
      ],
      "source_refs": [
        "S-001"
      ]
    },
    {
      "id": "C-002",
      "statement_en": "The differing outward paths are consistent with Open-Meteo rate limiting a network identity or route encountered by scheduled execution, but the provider's exact rate-limit key is not established.",
      "statement_ja": "異なる外向き経路は、Open-Meteoがスケジュール実行時に遭遇するネットワーク識別子または経路をレート制限対象としていた可能性と整合するが、プロバイダーの正確なレート制限キーは確定していない。",
      "evidence_state": "HYPOTHESIS",
      "confidence": "MEDIUM",
      "evidence_refs": [
        "O-004"
      ],
      "source_refs": [
        "S-001"
      ]
    },
    {
      "id": "C-003",
      "statement_en": "Routing the request through a Cloudflare Worker relay restored the investigated scheduled collection workflow according to the retained operator record.",
      "statement_ja": "保存されたオペレーター記録によれば、Cloudflare Workerリレー経由に変更することで、調査対象のスケジュール収集ワークフローは復旧した。",
      "evidence_state": "OBSERVED",
      "confidence": "MEDIUM",
      "evidence_refs": [
        "O-006"
      ],
      "source_refs": [
        "S-001"
      ]
    },
    {
      "id": "C-004",
      "statement_en": "A trigger-only extra Open-Meteo request in the inspected application code was not the cause of the observed 429 behavior.",
      "statement_ja": "確認したアプリケーションコードにおけるトリガー時だけの追加Open-Meteoリクエストは、観測された429挙動の原因ではなかった。",
      "evidence_state": "DISPROVEN",
      "confidence": "HIGH",
      "evidence_refs": [
        "O-005"
      ],
      "source_refs": [
        "S-001"
      ]
    }
  ],
  "analysis": [
    {
      "id": "AN-001",
      "method": "controlled execution-context comparison",
      "summary_en": "Because the same collection function produced HTTP 200 manually and HTTP 429 under a time-driven trigger, while code inspection found no trigger-only extra provider request, the evidence shifts the likely cause away from ordinary application request logic and toward execution/network context.",
      "summary_ja": "同一の収集関数が手動ではHTTP 200、時間主導トリガーではHTTP 429となり、かつコード確認でトリガー時だけの追加プロバイダー呼び出しが見つからなかったため、通常のアプリケーションリクエストロジックより実行・ネットワークコンテキスト側が原因である可能性が高まった。",
      "evidence_refs": [
        "O-001",
        "O-002",
        "O-004",
        "O-005"
      ]
    }
  ],
  "results": {
    "summary_en": "The trigger-only 429 was diagnosed as execution/network-context dependent at the available evidence level, and the investigated workflow was operationally mitigated by relaying the provider request through Cloudflare Worker. The provider's exact rate-limit key remains unresolved.",
    "summary_ja": "利用可能な証拠の範囲では、トリガー時だけの429は実行・ネットワークコンテキスト依存として診断され、Cloudflare Workerを介してプロバイダーへアクセスすることで調査対象ワークフローは運用上回避された。プロバイダーの正確なレート制限キーは未解明のままである。",
    "success_level": "SUCCESS",
    "established_claim_refs": [
      "C-001",
      "C-003"
    ],
    "unresolved_claim_refs": [
      "C-002"
    ],
    "disproven_claim_refs": [
      "C-004"
    ]
  },
  "conclusion": {
    "en": "The retained evidence supports treating this as an execution/network-context-dependent Open-Meteo 429 problem rather than a trigger-only application request bug. A Cloudflare Worker relay restored the investigated scheduled collection. The exact provider rate-limit key must remain unresolved rather than being inferred as fact.",
    "ja": "保存された証拠からは、これはトリガー時だけのアプリケーションリクエスト不具合ではなく、実行・ネットワークコンテキストに依存するOpen-Meteo 429問題として扱うのが妥当である。Cloudflare Workerリレーにより調査対象のスケジュール収集は復旧した。プロバイダーの正確なレート制限キーは、推測を事実化せず未解明として残す。",
    "evidence_basis_refs": [
      "C-001",
      "C-003",
      "C-004"
    ],
    "remaining_uncertainties": [
      "The exact Open-Meteo rate-limit key is unknown.",
      "It is unknown whether the temporary IP-check endpoint and Open-Meteo always observe the identical egress identity.",
      "The exact post-mitigation scheduled-run log and Cloudflare Worker source were not retained in the public legacy record."
    ],
    "recommended_next_actions": [
      "If this behavior recurs, retain timestamped manual/trigger HTTP logs and the exact post-mitigation scheduled-run evidence while continuing to redact network identifiers from public publication."
    ]
  },
  "data_artifacts": [
    {
      "id": "AR-001",
      "type": "legacy_record",
      "path": "experiments/OPENMETEO-TRIGGER-429-001/experiment.json",
      "description": "Pre-standard structured experiment record used as the source for this formal backfill.",
      "sha256": null,
      "public": true
    }
  ],
  "sources": [
    {
      "id": "S-001",
      "type": "internal_legacy_record",
      "title": "OPENMETEO-TRIGGER-429-001 legacy experiment record",
      "publisher": "AI Experiment Log",
      "date": "2026-08-14",
      "url": null,
      "public": true,
      "notes": "Contains already-redacted summary evidence; exact IP addresses, coordinates, spreadsheet identifiers, account identifiers, credentials, and household telemetry are not present."
    }
  ],
  "provenance": {
    "generated_by": "GPT-5.6 Sol assisted formal backfill and publication-pipeline test",
    "ai_systems": [
      "GPT-5.6 Sol"
    ],
    "human_roles": [
      "The human operator edited and ran the Apps Script, allowed scheduled trigger tests, reviewed logs, implemented the Cloudflare Worker mitigation, and explicitly authorized this formal backfill and first production pipeline run."
    ],
    "automation_systems": [
      "GitHub Actions",
      "AI Experiment Log registration-publication pipeline",
      "AI Experiment Log post-deployment finalizer"
    ],
    "human_editing": "UNKNOWN",
    "backfill": {
      "performed_at": "2026-08-22T13:40:00+09:00",
      "original_experiment_date": "2026-08-14",
      "source_record": "experiments/OPENMETEO-TRIGGER-429-001/experiment.json",
      "reason": "Convert a pre-standard experiment record into the formal AIEL canonical structure and use it as the first end-to-end production test of the automated registration/publication pipeline without inventing missing execution timestamps."
    }
  },
  "publication": {
    "public": true,
    "languages": {
      "en": {
        "published": true,
        "url": "https://ai-experiment-log.pages.dev/en/experiments/openmeteo-apps-script-trigger-429-cloudflare-worker/",
        "canonical": false
      },
      "ja": {
        "published": true,
        "url": "https://ai-experiment-log.pages.dev/ja/experiments/openmeteo-apps-script-trigger-429-cloudflare-worker/",
        "canonical": false
      }
    },
    "machine_readable_url": "https://ai-experiment-log.pages.dev/data/experiments/AIEL-2026-0002/experiment.json"
  },
  "relationships": [
    {
      "type": "FORMAL_SUCCESSOR_OF",
      "experiment_id": "OPENMETEO-TRIGGER-429-001"
    },
    {
      "type": "RELATED_TO",
      "experiment_id": "OPENMETEO-MSM-001"
    }
  ],
  "revisions": [
    {
      "revision": 1,
      "timestamp": null,
      "type": "INITIAL",
      "summary": "Original pre-standard record documents observations and mitigation on 2026-08-14; exact original creation and execution times were not retained."
    },
    {
      "revision": 2,
      "timestamp": "2026-08-22T13:40:00+09:00",
      "type": "METADATA_UPDATE",
      "summary": "Backfilled OPENMETEO-TRIGGER-429-001 as AIEL-2026-0002 under the formal canonical schema. Missing historical timestamps remain null; provider rate-limit internals remain unresolved."
    },
    {
      "revision": 3,
      "timestamp": "2026-08-22T13:40:00+09:00",
      "type": "PUBLICATION_REVIEW",
      "summary": "Publication/privacy review completed for the staged bilingual publication. Exact IP addresses, coordinates, spreadsheet identifiers, account identifiers, credentials, and household telemetry remain excluded. Human authorization for the first end-to-end production pipeline run was provided in the project conversation."
    },
    {
      "revision": 4,
      "timestamp": "2026-08-22T04:46:25+00:00",
      "type": "METADATA_UPDATE",
      "summary": "Gitleaks 8.24.3 full-history scan completed without detected leaks in GitHub Actions workflow run 32552551915 immediately before publication finalization; secret_scan_performed set to true."
    },
    {
      "revision": 5,
      "timestamp": "2026-08-22T04:46:25+00:00",
      "type": "PUBLICATION_UPDATE",
      "summary": "After human-approved merge to main, GitHub Actions workflow run 32552551915 directly observed the English page, Japanese page, and machine-readable JSON on Cloudflare Pages production. The JSON returned HTTP 200, matched experiment_id=AIEL-2026-0002, and matched the repository public copy byte-for-byte. Publication metadata was finalized from that observed state."
    }
  ],
  "security": {
    "contains_sensitive_data": false,
    "redactions_applied": true,
    "redaction_categories": [
      "network_identifier",
      "location_identifier",
      "spreadsheet_identifier",
      "account_identifier",
      "credential",
      "household_telemetry"
    ],
    "secret_scan_performed": true,
    "publication_reviewed": true
  }
}