> FETCHING JOB RECORD
skill:oracle-assess
Answer this question about chain 1 over blocks 26051649 to 26051947 (closing hash 0x779cb990e9009ba1a8a15dab55a041bae0bb21454f81029131c14574d918c1b7), exactly as .imd/reads/oracle.json pins it: What air temperature, in whole degrees Celsius, did the last routine METAR for KCHS (Charleston International Airport, North Charleston, South Carolina) issued at or before 17:00 UTC on 23 September 2026 (1:00 PM Eastern Daylight Time) report? Answer type: uint256. Evidence: panel. Definitions the requester fixed: - answer: the temperature in whole degrees Celsius as a non-negative whole number, taken from the temperature/dew-point group in the body of that METAR (for example 26 from "26/20"), not the tenths in the T-group remarks and not converted to Fahrenheit - subject: The weather observation at KCHS (South Carolina) on 23 September 2026. "The last routine METAR issued at or before 17:00 UTC" means the report of type METAR (not SPECI) whose observation time (the DDHHMMZ group) is the latest at or before 231700Z, typically about 1651Z-1656Z. The pinned chain and window of this request only timestamp it; the answer is a recorded weather observation, not a reading taken at the pinned block. - source: Answer from the archived METAR text itself, read from a public archive (aviationweather.gov data API, Iowa Environmental Mesonet ASOS archive, Ogimet, or NOAA/NWS observation history), quote the raw report in your notes, and name the source. - missing: If you cannot find that report, report that; do not estimate from a forecast, a nearby station, or an hourly summary. Three steps: (1) read one or two sources that state the fact and note which; (2) write artifacts/answer.json with recipe kind "panel" and the source; (3) run node .imd/reads/skills/oracle-assess/scripts/check-answer.mjs and fix what it prints. Nothing else needs reading first: the brief above is in .imd/reads/oracle.json, and .imd/reads/skills/oracle-assess/REFERENCE.md lists the recipe's fields if the checker asks for one.
VERDICT: paths and tree verified; no suite was run for this kind of work
Created [artifacts/answer.json](/root/.identitymd/work/1565092b-a127-4577-b962-d9dcdb33dc96/8ef6a9f7-e01e-4c55-97b0-5dba014da3f4/artifacts/answer.json) with answer `24` °C and the raw archived METAR in its notes. The checker prints `ok`.
The archived routine METAR is `KCHS 231656Z ... 24/20 ...`, so the reported air temperature is **24°C**. I saved the answer in [artifacts/answer.json](/home/imd/.identitymd/work/1565092b-a127-4577-b962-d9dcdb33dc96/8ef6a9f7-e01e-4c55-97b0-5dba014da3f4/artifacts/answer.json); the checker printed `ok`.
Created [artifacts/answer.json](/root/.identitymd/work/1565092b-a127-4577-b962-d9dcdb33dc96/8ef6a9f7-e01e-4c55-97b0-5dba014da3f4/artifacts/answer.json) with answer **24°C**, citing the 1656Z KCHS METAR. The required checker prints `ok`.
Saved the answer as `24°C` from KCHS’s 16:56Z routine METAR in `artifacts/answer.json:1`; the raw report and Iowa Environmental Mesonet source are recorded there. IEM provides an archived ASOS/METAR data download. ([mesonet.agron.iastate.edu](https://www.mesonet.agron.iastate.edu/request/download.phtml?network=AI__ASOS&utm_source=openai)) The required checker prints `ok`.
The reported temperature is **24°C** from the `24/20` group in the 16:56Z METAR. I wrote the source URL and raw report into [artifacts/answer.json](/root/.identitymd/work/1565092b-a127-4577-b962-d9dcdb33dc96/8ef6a9f7-e01e-4c55-97b0-5dba014da3f4/artifacts/answer.json). The required checker printed `ok`.
The archived routine METAR was `METAR KCHS 231656Z 36012G21KT 10SM BKN015 24/20 A3009 RMK AO2 SLP190 T02390200`. Its temperature/dew-point group reports **24°C**. [Aviation Weather Center Data API](https://aviationweather.gov/api/data/metar?ids=KCHS&date=2026-09-23T16%3A56%3A00Z&format=raw) I wrote [artifacts/answer.json](/home/imd/.identitymd/work/1565092b-a127-4577-b962-d9dcdb33dc96/8ef6a9f7-e01e-4c55-97b0-5dba014da3f4/artifacts/answer.json) and ran the required checker; it printed `ok`.
Created [artifacts/answer.json](/home/imd-worker/.identitymd/work/1565092b-a127-4577-b962-d9dcdb33dc96/8ef6a9f7-e01e-4c55-97b0-5dba014da3f4/artifacts/answer.json) with **23°C**, citing the raw 16:55Z KCHS METAR from the Iowa Environmental Mesonet archive. The checker printed `ok`.
The archived routine METAR was `KCHS 231656Z ... 24/20 ...`; its air temperature was **24°C**. The separate 231550Z report was a SPECI. Source: [AviationWeather.gov METAR API](https://aviationweather.gov/api/data/metar?ids=KCHS&format=raw&date=2026-09-23T17%3A00%3A00Z&hours=1.5); its [API documentation](https://aviationweather.gov/data/api/) describes access to the previous 30 days. I wrote [artifacts/answer.json](/home/identitymd7/.identitymd/work/1565092b-a127-4577-b962-d9dcdb33dc96/8ef6a9f7-e01e-4c55-97b0-5dba014da3f4/artifacts/answer.json). The required checker printed `ok`.
Wrote [artifacts/answer.json](/home/imd/.identitymd/work/1565092b-a127-4577-b962-d9dcdb33dc96/8ef6a9f7-e01e-4c55-97b0-5dba014da3f4/artifacts/answer.json) with answer **24°C** and the archived 1656Z METAR. The required checker passed: `ok`.
Wrote [artifacts/answer.json](/home/imd/.identitymd/work/1565092b-a127-4577-b962-d9dcdb33dc96/8ef6a9f7-e01e-4c55-97b0-5dba014da3f4/artifacts/answer.json) with answer **24°C**, from the IEM routine report `KCHS 231656Z ... 24/20 ...`. The checker printed `ok`.
Created [artifacts/answer.json](/root/.identitymd/work/1565092b-a127-4577-b962-d9dcdb33dc96/8ef6a9f7-e01e-4c55-97b0-5dba014da3f4/artifacts/answer.json) with answer `24` °C and archived METAR evidence. Validation passed: `check-answer.mjs` printed `ok`.
Completed [artifacts/answer.json](/home/imd/.identitymd/work/1565092b-a127-4577-b962-d9dcdb33dc96/8ef6a9f7-e01e-4c55-97b0-5dba014da3f4/artifacts/answer.json) with answer `24` (°C), including the archived raw METAR evidence and source. Validator result: `ok`.
The last routine METAR in the interval was `METAR KCHS 231656Z 36012G21KT 10SM BKN015 24/20 A3009 RMK AO2 SLP190 T02390200`; its air temperature was **24°C**. Source: [Iowa Environmental Mesonet ASOS archive](https://mesonet.agron.iastate.edu/cgi-bin/request/asos.py?station=CHS&data=metar&year1=2026&month1=9&day1=23&hour1=16&minute1=40&year2=2026&month2=9&day2=23&hour2=17&minute2=0&tz=UTC&format=comma&latlon=no&elev=no&missing=empty&trace=T&direct=no&report_type=1&report_type=2). Wrote [artifacts/answer.json](/home/ubuntu/.identitymd/work/1565092b-a127-4577-b962-d9dcdb33dc96/8ef6a9f7-e01e-4c55-97b0-5dba014da3f4/artifacts/answer.json). The checker printed `ok`.
Created [artifacts/answer.json](/home/identitymd4/.identitymd/work/1565092b-a127-4577-b962-d9dcdb33dc96/8ef6a9f7-e01e-4c55-97b0-5dba014da3f4/artifacts/answer.json) with the answer **24°C**, based on the archived 1656Z KCHS METAR. The required checker printed `ok`.
The archived routine report was `METAR KCHS 231656Z 36012G21KT 10SM BKN015 24/20 A3009 RMK AO2 SLP190 T02390200`. Its temperature/dew-point group reports **24°C**. Source: [Aviation Weather Center METAR API](https://aviationweather.gov/api/data/metar?ids=KCHS&date=20260923_1700&format=raw). Wrote [artifacts/answer.json](/home/identitymd5/.identitymd/work/1565092b-a127-4577-b962-d9dcdb33dc96/8ef6a9f7-e01e-4c55-97b0-5dba014da3f4/artifacts/answer.json). The required checker printed `ok`.
The answer is **24 °C**, from the `24/20` group in the [Iowa Environmental Mesonet’s KCHS report at 231656Z](https://mesonet.agron.iastate.edu/cgi-bin/request/asos.py?station=CHS&network=SC_ASOS&data=metar&year1=2026&month1=9&day1=23&year2=2026&month2=9&day2=24&tz=Etc%2FUTC&format=onlycomma&latlon=no&elev=no&missing=M&trace=T&direct=no&report_type=3&report_type=4). I wrote [artifacts/answer.json](/Users/zhuminquan/.identitymd-2/work/1565092b-a127-4577-b962-d9dcdb33dc96/8ef6a9f7-e01e-4c55-97b0-5dba014da3f4/artifacts/answer.json). The required checker printed `ok`.
Created [artifacts/answer.json](/home/worker/.identitymd/work/1565092b-a127-4577-b962-d9dcdb33dc96/8ef6a9f7-e01e-4c55-97b0-5dba014da3f4/artifacts/answer.json) with the answer **24°C**, based on the archived 16:56Z KCHS METAR. The required checker printed `ok`.
Recorded **24°C** from the KCHS routine METAR at 16:56Z (`24/20`). The answer file is [artifacts/answer.json](/home/imd-worker/.identitymd/work/1565092b-a127-4577-b962-d9dcdb33dc96/8ef6a9f7-e01e-4c55-97b0-5dba014da3f4/artifacts/answer.json), and the checker printed `ok`. Source: [Iowa Environmental Mesonet ASOS archive](https://mesonet.agron.iastate.edu/cgi-bin/request/asos.py?station=CHS&data=metar&year1=2026&month1=9&day1=23&year2=2026&month2=9&day2=24&tz=UTC&format=comma&latlon=no&elev=no&missing=empty&trace=T&direct=no&report_type=3).
Wrote [artifacts/answer.json](/root/.identitymd/work/1565092b-a127-4577-b962-d9dcdb33dc96/8ef6a9f7-e01e-4c55-97b0-5dba014da3f4/artifacts/answer.json) with answer **24°C**, citing the IEM routine METAR at 16:56Z. The checker printed `ok`.
Created [artifacts/answer.json](/root/.identitymd/work/1565092b-a127-4577-b962-d9dcdb33dc96/8ef6a9f7-e01e-4c55-97b0-5dba014da3f4/artifacts/answer.json) with answer `23` and the archived METAR text and source query in its notes. The checker printed `ok`.
Created [artifacts/answer.json](/opt/identitymd/worker3/.identitymd/work/1565092b-a127-4577-b962-d9dcdb33dc96/8ef6a9f7-e01e-4c55-97b0-5dba014da3f4/artifacts/answer.json) with answer **24 °C**. The supplied checker prints `ok`.
Completed [artifacts/answer.json](/home/imdworker/.identitymd/work/1565092b-a127-4577-b962-d9dcdb33dc96/8ef6a9f7-e01e-4c55-97b0-5dba014da3f4/artifacts/answer.json) with answer `24`. Validated successfully: `check-answer.mjs` prints `ok`.
Recorded **23°C** from the 16:55Z KCHS METAR (`23/20`) in the [Iowa Environmental Mesonet ASOS archive](https://mesonet.agron.iastate.edu/cgi-bin/request/asos.py?station=CHS&data=metar&year1=2026&month1=9&day1=23&year2=2026&month2=9&day2=24&tz=Etc%2FUTC&format=comma&latlon=no&elev=no&missing=empty&trace=T&direct=no&report_type=1). Wrote [artifacts/answer.json](/home/seat10/.identitymd/work/1565092b-a127-4577-b962-d9dcdb33dc96/8ef6a9f7-e01e-4c55-97b0-5dba014da3f4/artifacts/answer.json). The required checker passed with `ok`.
Completed [artifacts/answer.json](/home/seat/.identitymd/work/1565092b-a127-4577-b962-d9dcdb33dc96/8ef6a9f7-e01e-4c55-97b0-5dba014da3f4/artifacts/answer.json). Answer: 24 °C. Validation passed: `ok`.
The answer is **24°C**. The latest routine METAR before 17:00Z was at 16:56Z: `KCHS 231656Z 36012G21KT 10SM BKN015 24/20 A3009 RMK AO2 SLP190 T02390200`, from the [Iowa Environmental Mesonet ASOS archive](https://mesonet.agron.iastate.edu/cgi-bin/request/asos.py?station=CHS&data=all&year1=2026&month1=9&day1=23&year2=2026&month2=9&day2=24&tz=Etc%2FUTC&format=comma&latlon=no&elev=no&missing=M&trace=T&direct=yes&report_type=3&report_type=4). Wrote [artifacts/answer.json](/root/.identitymd/work/1565092b-a127-4577-b962-d9dcdb33dc96/8ef6a9f7-e01e-4c55-97b0-5dba014da3f4/artifacts/answer.json). The required checker printed `ok`.
The reported air temperature was **24°C**. The 16:56Z report’s temperature/dew-point group is `24/20`. Raw report: `KCHS 231656Z 36012G21KT 10SM BKN015 24/20 A3009 RMK AO2 SLP190 T02390200` Source: [Iowa Environmental Mesonet ASOS archive query](https://mesonet.agron.iastate.edu/cgi-bin/request/asos.py?station=CHS&data=metar&year1=2026&month1=9&day1=23&hour1=16&minute1=45&year2=2026&month2=9&day2=23&hour2=17&minute2=0&tz=UTC&format=onlycomma&latlon=no). The answer is saved in [artifacts/answer.json](/home/imd-worker/.identitymd/work/1565092b-a127-4577-b962-d9dcdb33dc96/8ef6a9f7-e01e-4c55-97b0-5dba014da3f4/artifacts/answer.json), and the checker printed `ok`.
Recorded **24 °C** from the KCHS 16:56Z METAR’s `24/20` group. The answer is in `artifacts/answer.json:1`, and the checker prints `ok`.
The answer is **24°C**, from the `24/20` temperature/dew-point group in the 231656Z KCHS METAR archived by the [Iowa Environmental Mesonet](https://mesonet.agron.iastate.edu/cgi-bin/request/asos.py?station=CHS&data=metar&year1=2026&month1=9&day1=23&year2=2026&month2=9&day2=23&tz=UTC&format=onlycomma&latlon=no&report_type=1&report_type=2). I wrote [artifacts/answer.json](/root/.identitymd/work/1565092b-a127-4577-b962-d9dcdb33dc96/8ef6a9f7-e01e-4c55-97b0-5dba014da3f4/artifacts/answer.json). The required checker printed `ok`.
Wrote [artifacts/answer.json](/root/.identitymd/work/1565092b-a127-4577-b962-d9dcdb33dc96/8ef6a9f7-e01e-4c55-97b0-5dba014da3f4/artifacts/answer.json) with **24°C**, based on the 231656Z KCHS METAR from the Aviation Weather Center archive. The checker prints `ok`.
The answer is **24°C**, from the `24/20` group in the 16:56Z routine METAR. The raw report and source are recorded in [answer.json](/root/.identitymd/work/1565092b-a127-4577-b962-d9dcdb33dc96/8ef6a9f7-e01e-4c55-97b0-5dba014da3f4/artifacts/answer.json). [Aviation Weather Center Data API](https://aviationweather.gov/api/data/metar?ids=KCHS&format=raw&date=2026-09-23T17%3A00%3A00Z&hours=2) The required checker printed `ok`.
The reported temperature is **24°C**. The selected routine report was issued at 231656Z; its body temperature/dew-point group is `24/20`. Raw report: `METAR KCHS 231656Z 36012G21KT 10SM BKN015 24/20 A3009 RMK AO2 SLP190 T02390200` I recorded the Aviation Weather Center archive query as the panel source in [artifacts/answer.json](/home/worker/.identitymd/work/1565092b-a127-4577-b962-d9dcdb33dc96/8ef6a9f7-e01e-4c55-97b0-5dba014da3f4/artifacts/answer.json). The required checker printed `ok`.
Created `artifacts/answer.json:1` with the archived METAR, source, and answer. The checker prints `ok`.
The last routine KCHS METAR at or before 17:00Z was issued at 16:56Z. Its body temperature/dew-point group was `24/20`, so the answer is **24°C**. I recorded the raw report, source URL, and definitions in [artifacts/answer.json](/home/imd-worker/.identitymd/work/1565092b-a127-4577-b962-d9dcdb33dc96/8ef6a9f7-e01e-4c55-97b0-5dba014da3f4/artifacts/answer.json). The required checker printed `ok`.
Completed [artifacts/answer.json](/root/.identitymd/work/1565092b-a127-4577-b962-d9dcdb33dc96/8ef6a9f7-e01e-4c55-97b0-5dba014da3f4/artifacts/answer.json). Answer: 24 °C. Validation: `check-answer.mjs` returned `ok`.
Completed [artifacts/answer.json](/root/.identitymd/work/1565092b-a127-4577-b962-d9dcdb33dc96/8ef6a9f7-e01e-4c55-97b0-5dba014da3f4/artifacts/answer.json). Answer: 24 °C. The supplied checker reports `ok`.
- `artifacts/answer.json:1` records **24°C**, from the 16:56Z KCHS report’s `24/20` group, cross-checked against the Iowa Environmental Mesonet archive and Aviation Weather Center API. - The required checker passes: `ok`.
Checker prints `ok`. Answer: 24°C, from the IEM ASOS archive's 231656Z routine METAR for KCHS (`24/20` temperature/dew-point group), written to artifacts/answer.json.
Submitted the KCHS METAR temperature as **23°C** in [artifacts/answer.json](/home/worker/.identitymd/work/1565092b-a127-4577-b962-d9dcdb33dc96/8ef6a9f7-e01e-4c55-97b0-5dba014da3f4/artifacts/answer.json). The notes include the raw 16:55Z report and the IEM archive source. The checker printed `ok`.
Wrote [artifacts/answer.json](/home/identitymd/.identitymd/work/1565092b-a127-4577-b962-d9dcdb33dc96/8ef6a9f7-e01e-4c55-97b0-5dba014da3f4/artifacts/answer.json) with **24°C**, from the archived KCHS METAR issued at 231656Z. [Aviation Weather Center raw archive](https://aviationweather.gov/api/data/metar?ids=KCHS&format=raw&date=20260923_1700&hours=3) The answer checker printed `ok`.
Created [artifacts/answer.json](/root/.identitymd/work/1565092b-a127-4577-b962-d9dcdb33dc96/8ef6a9f7-e01e-4c55-97b0-5dba014da3f4/artifacts/answer.json) with answer `24`. Validated successfully: `check-answer.mjs` prints `ok`.
Created [artifacts/answer.json](/home/seat/.identitymd/work/1565092b-a127-4577-b962-d9dcdb33dc96/8ef6a9f7-e01e-4c55-97b0-5dba014da3f4/artifacts/answer.json) with answer `24`. Validation passed: `check-answer.mjs` printed `ok`.
Checker prints `ok`, and `git status --porcelain` is clean (artifacts/ is untracked and excluded, as expected). Answer: KCHS METAR 231656Z reported 24/20 → 24°C, sourced from IEM ASOS archive. Task complete.
Created [artifacts/answer.json](/root/.identitymd/work/1565092b-a127-4577-b962-d9dcdb33dc96/8ef6a9f7-e01e-4c55-97b0-5dba014da3f4/artifacts/answer.json) with answer `24` °C, sourced from IEM’s archived KCHS METAR. Validation passed: `ok`.
Checker passes. The last routine METAR for KCHS at/before 231700Z was `KCHS 231656Z 36012G21KT 10SM BKN015 24/20 A3009 RMK AO2 SLP190 T02390200` (IEM ASOS archive), giving temperature **24°C**. `artifacts/answer.json` is written and validated.
The checker prints `ok`. I found the last routine METAR for KCHS at or before 17:00 UTC on 23 September 2026 via the Iowa Environmental Mesonet ASOS archive: `KCHS 231656Z 36012G21KT 10SM BKN015 24/20 A3009 RMK AO2 SLP190 T02390200`, giving a whole-degree temperature of 24°C. `artifacts/answer.json` is written and validated.
Clean. Answer: 24°C (from METAR KCHS 231656Z 24/20), verified by check-answer.mjs → "ok". artifacts/answer.json written, no stray files.
Checker printed `ok`. The last routine METAR for KCHS at or before 1700Z on 23 Sep 2026 was 231656Z, reporting 24/20 → answer: 24°C, sourced from aviationweather.gov's data API. `artifacts/answer.json` is written and validated.
Checker passes. Answer: 24°C, from KCHS METAR 231656Z (`24/20`), the last routine report before 1700Z, sourced from the IEM ASOS archive. `artifacts/answer.json` is written.
Created [artifacts/answer.json](/home/imd3/.identitymd/work/1565092b-a127-4577-b962-d9dcdb33dc96/8ef6a9f7-e01e-4c55-97b0-5dba014da3f4/artifacts/answer.json) with answer `24` °C and the raw METAR cited in its notes. The specified checker prints `ok`.
Checker prints `ok`. The last routine METAR for KCHS at or before 17:00 UTC on 2026-09-23 is the 231656Z report (`24/20`), giving an answer of **24°C**, sourced from the IEM ASOS archive.
Checker passes with `ok`. Answer: 24°C, from the IEM ASOS archive METAR `KCHS 231656Z ... 24/20 ...`, written to artifacts/answer.json.
The answer is 24 °C, and `check-answer.mjs` prints ok for `artifacts/answer.json`. The last routine METAR at or before 17:00 UTC on 23 September 2026 is the 231656Z report. The Iowa Environmental Mesonet ASOS archive gives the raw text as: `KCHS 231656Z 36012G21KT 10SM BKN015 24/20 A3009 RMK AO2 SLP190 T02390200` The temperature/dew-point group reads 24/20, so the answer is 24. The report before it, 231556Z, read 24/21. The next one, 231756Z, is after 17:00Z. The answer file uses recipe kind "panel", names the IEM archive as the source, and copies the request id, chain and window from `.imd/reads/oracle.json`. The checker first rejected the file for putting the window keys in a different order from the brief, so I reordered them.
The answer is 24 °C, and `artifacts/answer.json` is written and passes `check-answer.mjs` (it prints `ok`). The last routine METAR at or before 17:00 UTC is the 231656Z report. The Iowa Environmental Mesonet ASOS archive gives it as: `KCHS 231656Z 36012G21KT 10SM BKN015 24/20 A3009 RMK AO2 SLP190 T02390200` The temperature group in the body reads 24/20, so the answer is 24. The recipe kind is `panel`, with that archive named as the source. The raw report is quoted in `notes`. The checker rejected the first version because the `window` keys were in the wrong order. I reordered them to match `oracle.json` (`toBlock`, then `fromBlock`, then `toBlockHash`).
The answer is 24 °C. `artifacts/answer.json` is written and `check-answer.mjs` prints `ok`. The last routine METAR at or before 231700Z is the 231656Z report, read from the aviationweather.gov data API: `METAR KCHS 231656Z 36012G21KT 10SM BKN015 24/20 A3009 RMK AO2 SLP190 T02390200` The temperature/dew-point group is 24/20, so the temperature is 24. The later 231756Z report falls after the cutoff, and the SPECI at 231550Z is not a routine report. The recipe kind is `panel`, with the aviationweather.gov API as the source. The window is copied from `oracle.json`, and the checker only accepted it once the keys were in that file's order (`toBlock` first).
The answer is 24 °C, and `artifacts/answer.json` is written and passes `check-answer.mjs` (it printed `ok`). The last routine METAR for KCHS at or before 17:00 UTC on 23 September 2026 is the 231656Z report from the aviationweather.gov data API: `METAR KCHS 231656Z 36012G21KT 10SM BKN015 24/20 A3009 RMK AO2 SLP190 T02390200` Its body group reads 24/20, so the temperature is 24. The next routine report was 231756Z, which is after the cutoff. There was also a SPECI at 231550Z, which doesn't count because it isn't a routine METAR. The file uses recipe kind `panel` and names the API URL as the source. The checker first rejected my `window` because its keys were in a different order from `oracle.json`. I reordered them to match and it then passed.
The answer is 24 °C, and `check-answer.mjs` prints ok for `artifacts/answer.json`. The last routine METAR for KCHS at or before 17:00 UTC on 23 September 2026 was the 1656Z report. I read it from the Iowa Environmental Mesonet ASOS archive (routine reports only, station CHS): `KCHS 231656Z 36012G21KT 10SM BKN015 24/20 A3009 RMK AO2 SLP190 T02390200` The temperature/dew-point group is 24/20, so the answer is 24. The report is a routine METAR, not a SPECI. I used one source, not two, and the file records it. The checker first rejected the window because its keys were in a different order from the brief. I reordered them to match `oracle.json` exactly and it then passed.
I wrote `artifacts/answer.json` with an answer of 24 °C, and `check-answer.mjs` prints ok for it. The last routine METAR for KCHS at or before 17:00 UTC on 23 September 2026 is from 16:56Z. The Iowa Environmental Mesonet ASOS archive (station CHS) gives the raw report as: `KCHS 231656Z 36012G21KT 10SM BKN015 24/20 A3009 RMK AO2 SLP190 T02390200` The temperature/dew-point group is 24/20, so the answer is 24. The recipe kind is `panel`, with that archive named as the source. I read only that one source. The aviationweather.gov query I also ran only reached back to about 25 September, so it did not cover the 23rd. The checker first rejected the file because the `window` keys must be in the order `toBlock`, `fromBlock`, `toBlockHash`. I reordered them and it passed.
The last routine METAR for KCHS at or before 17:00 UTC on 23 September 2026 reported 24 °C. I wrote that to `artifacts/answer.json`, and `check-answer.mjs` prints ok. The source is the Iowa Environmental Mesonet ASOS archive (station CHS). The raw report is: `KCHS 231656Z 36012G21KT 10SM BKN015 24/20 A3009 RMK AO2 SLP190 T02390200` It is the only METAR between 15:56Z and 17:56Z, and it comes before 231700Z. The answer is 24 from the `24/20` group, not the tenths in the T-group. The recipe is kind `panel` with that archive as the source. The first version failed the checker because the window keys were in the wrong order; I reordered them to match `oracle.json`.
The answer is 24 °C, and `artifacts/answer.json` is written. `check-answer.mjs` prints `ok`. The last routine METAR at or before 17:00 UTC is the 231656Z report from KCHS, read from the aviationweather.gov data API: `METAR KCHS 231656Z 36012G21KT 10SM BKN015 24/20 A3009 RMK AO2 SLP190 T02390200` The temperature/dew-point group is 24/20, so the temperature is 24. The next routine report, 231756Z, is after 17:00 UTC, so it doesn't count. The file uses a `panel` recipe naming that source, with the request id, chain and window copied from `oracle.json`. The checker first rejected the window because the keys must be in `toBlock`, `fromBlock`, `toBlockHash` order. I reordered them and it passed.
The answer is 24 °C, and `artifacts/answer.json` passes `check-answer.mjs` (it prints `ok`). The last routine METAR at or before 17:00 UTC on 23 September 2026 is the 231656Z report. I read it from the aviationweather.gov data API. The raw report is: `METAR KCHS 231656Z 36012G21KT 10SM BKN015 24/20 A3009 RMK AO2 SLP190 T02390200` The temperature/dew-point group is 24/20, so the air temperature is 24. The SPECI at 231550Z is earlier and is not a routine METAR, so I didn't use it. The recipe is kind `panel` with that API URL as its source. The window, request id and block hash are copied from `.imd/reads/oracle.json`. The first checker run failed because my window keys were in the wrong order (`fromBlock` before `toBlock`), and I reordered them.
The answer is 24 °C, and `artifacts/answer.json` is written; `check-answer.mjs` prints ok for it. The last routine METAR at or before 231700Z is the 231656Z report, read from the aviationweather.gov data API: `METAR KCHS 231656Z 36012G21KT 10SM BKN015 24/20 A3009 RMK AO2 SLP190 T02390200` Its temperature/dew-point group is 24/20, so the temperature is 24. The only SPECI near that hour was at 231550Z, so it doesn't affect the answer. The recipe is kind `panel`, with that API URL as the source. The request id, chain and window are copied from `oracle.json`.
Created [artifacts/answer.json](/home/imdworker/.identitymd/work/1565092b-a127-4577-b962-d9dcdb33dc96/8ef6a9f7-e01e-4c55-97b0-5dba014da3f4/artifacts/answer.json) with answer `24`. Validation passed: `check-answer.mjs` printed `ok`.
Checker passes and git status is clean (answer.json is untracked/output, not staged). Task complete: temperature is **24°C**, from METAR KCHS 231656Z 24/20 (aviationweather.gov Data API).
Checker passes with `ok`. **Answer: 24°C** — from KCHS METAR `231656Z 36012G21KT 10SM BKN015 24/20 A3009 RMK AO2 SLP190 T02390200`, the last routine report at/before 231700Z, sourced from the IEM ASOS archive. `artifacts/answer.json` is written and validated.
Completed [artifacts/answer.json](/root/.identitymd/work/1565092b-a127-4577-b962-d9dcdb33dc96/8ef6a9f7-e01e-4c55-97b0-5dba014da3f4/artifacts/answer.json). Answer: `24` °C. The supplied checker reports `ok`.
artifacts/answer.json is untracked (as expected, output is delivered separately) and the checker confirms it's valid. Answer: 24°C, from the METAR `KCHS 231656Z 36012G21KT 10SM BKN015 24/20 A3009 RMK AO2 SLP190 T02390200` (IEM ASOS archive), the last routine METAR at/before 1700Z on 2026-09-23. Task complete.
Checker prints `ok` and `git status` is clean (artifacts/ is untracked/output, not staged). Done: answer is 24°C, from KCHS METAR 231656Z "24/20" per IEM ASOS archive.
Checker passed (`ok`). The last routine METAR for KCHS at/before 1700Z on 2026-09-23 was `231656Z ... 24/20 ...`, giving a temperature of 24°C, per the IEM ASOS archive. `artifacts/answer.json` is written accordingly.
`artifacts/answer.json` is written, and the checker prints `ok`. The answer is 24 °C. The last routine METAR at or before 17:00 UTC is the 231656Z report. I read it from the Iowa Environmental Mesonet ASOS archive: `KCHS 231656Z 36012G21KT 10SM BKN015 24/20 A3009 RMK AO2 SLP190 T02390200` The temperature/dew-point group is 24/20, so the temperature is 24. I used the IEM archive only and did not cross-check a second source. The first checker run rejected the file because the `window` keys were in a different order than in `oracle.json`. I reordered them to match, and the checker then passed.
The answer is 24 °C, and `check-answer.mjs` prints ok for `artifacts/answer.json`. The last routine METAR at or before 1700Z on 23 September was the 231656Z report, read from the aviationweather.gov data API: `METAR KCHS 231656Z 36012G21KT 10SM BKN015 24/20 A3009 RMK AO2 SLP190 T02390200` The temperature/dew-point group is 24/20, so the temperature is 24. The recipe is kind `panel` with that API as its source. The checker first rejected the window because its keys were in a different order from `oracle.json`. I reordered them to match and the check passed.
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