tool-use trial, 19 frozen tasks x 2 repeats, max 8 rounds.

UTC, Z-stamped. Converted at the pen; see README.md and provenance.json.

Skip records whose type is kit-provenance to get the harness's own stream.


Prompt: The harbour is buying 47 barrels of tar at 13 shillings each, and there is a 96 shilling landing levy on the whole consignment. What is the total cost in shillings?

Answer: The total cost is 707 shillings.

The total cost is 707 shillings.

The total cost is 707 shillings.


Prompt: How far is 12 nautical miles in kilometres?

Answer: 12 nautical miles is 22.224 kilometres.

12 nautical miles is 22.224 kilometres.

12 nautical miles is 22.224 kilometres.


Prompt: How many days are there from 2026-08-12 to 2026-09-02?

Answer: There are 21 days from 2026-08-12 to 2026-09-02.

There are 21 days from 2026-08-12 to 2026-09-02.

There are 21 days from 2026-08-12 to 2026-09-02.


Prompt: What is the date and time on the harbour office clock right now?

Answer: The date and time on the harbour office clock is Wednesday, August 12, 2026, at 09:00:00.

the harbour office clock is fixed for these trials

The date and time on the harbour office clock is Wednesday, August 12, 2026, at 09:00:00.

The date and time on the harbour office clock is Wednesday, August 12, 2026, at 09:00:00.


Prompt: Which role at the harbour refuses a berth allocation when a vessel's draught is not comfortably under the berth depth? The crew duties file says.

Answer: The role that refuses a berth allocation when a vessel's draught is not comfortably under the berth depth is the **berth master**.

{"path": ".", "recursive": true, "entries": [{"path": "README.md", "type": "file", "bytes": 875}, {"path": "crew", "type": "dir", "bytes": null}, {"path": "crew/duties.md", "type": "file", "bytes": 463}, {"path": "crew/roster.md", "type": "file", "bytes": 393}, {"path": "fixtures.sqlite", "type": "file", "bytes": 24576}, {"path": "harbor", "type": "dir", "bytes": null}, {"path": "harbor/berths.txt", "type": "file", "bytes": 401}, {"path": "harbor/inventory.md", "type": "file", "bytes": 591}, {"path": "harbor/schedule.md", "type": "file", "bytes": 504}, {"path": "ledger", "type": "dir", "bytes"…[truncated]

# Duties by role

- **watch keeper** — opens and closes the gate, writes the day's log line for
  every arrival and departure.
- **crane hand** — works the crane at berth B3. No other berth has one.
- **ledger clerk** — enters every payment into `ledger/ledger.csv` and counts
  the stores on the tenth of each month.
- **berth master** — allocates berths, and refuses any allocation where the
  vessel's draught is not comfortably under the berth depth.

The role that refuses a berth allocation when a vessel's draught is not comfortably under the berth depth is the **berth master**.

The role that refuses a berth allocation when a vessel's draught is not comfortably under the berth depth is the **berth master**.


Prompt: How many vessels are recorded in the harbour database?

Answer: There are 5 vessels recorded in the harbour database.

There are 5 vessels recorded in the harbour database.

There are 5 vessels recorded in the harbour database.


Prompt: One of the gate logs records a vessel exceeding a berth's draught limit. Which vessel was it, at what time was she moved, and which berth was she moved to?

Answer: The vessel was the Tide Cutter; she was moved at 09:26:02-06:00 on 2026-08-02 to berth B3.

Question: draught limit

Question: draught limit

Question: draught

{"query": "draught", "case_sensitive": false, "match_count": 5, "truncated": false, "matches": [{"path": "README.md", "line": 17, "text": "Money is in shillings throughout. Depths and draughts are in metres. Dates are"}, {"path": "crew/duties.md", "line": 9, "text": "vessel's draught is not comfortably under the berth depth."}, {"path": "harbor/berths.txt", "line": 7, "text": "B4  depth 2.9 m   no crane   shallow; check draught before allocating"}, {"path": "harbor/berths.txt", "line": 9, "text": "A vessel may take a berth only if the berth depth exceeds her draught."}, {"path": "logs/2026-08-…[truncated]

2026-08-02T05:58:19-06:00 INFO  gate opened by watch keeper Ivers Danne
2026-08-02T09:21:47-06:00 WARN  draught exceeded at berth B4 by Tide Cutter (3.4 m against 2.9 m)
2026-08-02T09:26:02-06:00 INFO  Tide Cutter moved to berth B3
2026-08-02T13:15:41-06:00 INFO  crane at berth B3 lifted 2 pallets of salt cod
2026-08-02T17:03:12-06:00 INFO  gate closed

Question: draught limit

Question: draught

The vessel was the Tide Cutter; she was moved at 09:26:02-06:00 on 2026-08-02 to berth B3.

The vessel was the Tide Cutter; she was moved at 09:26:02-06:00 on 2026-08-02 to berth B3.


Prompt: Look in the ledger directory, read the harbour ledger, and tell me the total of all the outgoing amounts, in shillings.

Answer: The total of all outgoing amounts in the harbour ledger is 1,195 shillings.

date,account,description,amount_shillings
2026-07-28,stores,lamp oil delivery,-312
2026-07-30,berthing,Grey Petrel berth fee,180
2026-08-01,stores,hemp rope resupply,-96
2026-08-02,repairs,B4 fender replacement,-244
2026-08-03,berthing,Salt Wren berth fee,150
2026-08-05,stores,salt cod purchase,-410
2026-08-07,berthing,Tide Cutter berth fee,205
2026-08-09,repairs,crane cable inspection,-133

The total of all outgoing amounts in the harbour ledger is 1,195 shillings.

The total of all outgoing amounts in the harbour ledger is 1,195 shillings.


Prompt: Kestrel Reach is due to sail. Find the berth she sails from in the sailing schedule, find that berth's depth in the berth notes, and look up her draught in the harbour database. Does the berth take her?

Answer: Kestrel Reach is scheduled to sail from berth B3. According to the berth notes, berth B3 has a depth of 5.0 m. The harbour database lists the draught of Kestrel Reach as 4.1 m. Since the berth depth exceeds her draught, the berth does take her.

Question: Kestrel Reach

Question: Kestrel Reach

| Kestrel Reach | 2026-08-30 | Halloway    | B3    |

Kettleburn Harbour - berth notes
Depths are at mean low water, in metres.

B1  depth 4.2 m   no crane   suits coasters up to 300 t
B2  depth 3.6 m   no crane   sheltered, best in a westerly
B3  depth 5.0 m   crane      the only berth on the quay with a crane
B4  depth 2.9 m   no crane   shallow; check draught before allocating

A vessel may take a berth only if the berth depth exceeds her draught.

SELECT draught_m FROM vessels WHERE name = 'Kestrel Reach'

Question: Kestrel Reach

SELECT draught_m FROM vessels WHERE name = 'Kestrel Reach'

Kestrel Reach is scheduled to sail from berth B3. According to the berth notes, berth B3 has a depth of 5.0 m. The harbour database lists the draught of Kestrel Reach as 4.1 m. Since the berth depth exceeds her draught, the berth does take her.

Kestrel Reach is scheduled to sail from berth B3. According to the berth notes, berth B3 has a depth of 5.0 m. The harbour database lists the draught of Kestrel Reach as 4.1 m. Since the berth depth exceeds her draught, the berth does take her.


Prompt: Using the harbour office clock, work out how many days there are from today until Kestrel Reach sails, and write the answer into a note called sailing.txt.

Answer: There are 18 days from today (2026-08-12) until Kestrel Reach sails (2026-08-30). This answer has been written to sailing.txt.

SELECT v.name, vi.departed FROM vessels v JOIN visits vi ON v.id = vi.vessel_id WHERE v.name = 'Kestrel Reach' AND vi.departed >= '2024-01-01' ORDER BY vi.departed ASC LIMIT 1

SELECT v.name, vi.departed FROM vessels v JOIN visits vi ON v.id = vi.vessel_id WHERE v.name = 'Kestrel Reach' AND vi.departed >= '2026-08-12' ORDER BY vi.departed ASC LIMIT 1

SELECT vi.departed FROM visits vi JOIN vessels v ON vi.vessel_id = v.id WHERE v.name = 'Kestrel Reach' AND vi.departed >= '2026-08-12' ORDER BY vi.departed ASC LIMIT 1

Question: Kestrel Reach

Question: Kestrel Reach

SELECT v.name, vi.departed FROM vessels v JOIN visits vi ON v.id = vi.vessel_id WHERE v.name = 'Kestrel Reach' AND vi.departed >= '2024-01-01' ORDER BY vi.departed ASC LIMIT 1

SELECT v.name, vi.departed FROM vessels v JOIN visits vi ON v.id = vi.vessel_id WHERE v.name = 'Kestrel Reach' AND vi.departed >= '2026-08-12' ORDER BY vi.departed ASC LIMIT 1

SELECT vi.departed FROM visits vi JOIN vessels v ON vi.vessel_id = v.id WHERE v.name = 'Kestrel Reach' AND vi.departed >= '2026-08-12' ORDER BY vi.departed ASC LIMIT 1

Question: Kestrel Reach

There are 18 days from today (2026-08-12) until Kestrel Reach sails (2026-08-30). This answer has been written to sailing.txt.

There are 18 days from today (2026-08-12) until Kestrel Reach sails (2026-08-30). This answer has been written to sailing.txt.


Prompt: Fetch the tide reading from http://127.0.0.1:8971/tide.json and tell me how many hours there are between low water and high water.

Answer: I attempted to fetch the tide reading from `http://127.0.0.1:8971/tide.json`, but the connection was refused. As a result, I cannot determine the times for low and high water or calculate the hours between them.

could not reach http://127.0.0.1:8971/tide.json: <urlopen error [Errno 111] Connection refused>

could not reach http://127.0.0.1:8971/tide: <urlopen error [Errno 111] Connection refused>

I attempted to fetch the tide reading from `http://127.0.0.1:8971/tide.json`, but the connection was refused. As a result, I cannot determine the times for low and high water or calculate the hours between them.

I attempted to fetch the tide reading from `http://127.0.0.1:8971/tide.json`, but the connection was refused. As a result, I cannot determine the times for low and high water or calculate the hours between them.


Prompt: Which berth has a crane? Answer from the harbour database — the text files are not the source of record for this.

Answer: Berth B3 has a crane.

SELECT code FROM berths WHERE has_crane = 1

SELECT code FROM berths WHERE has_crane = 1

Berth B3 has a crane.

Berth B3 has a crane.


Prompt: The harbour service publishes today's notice at http://127.0.0.1:8971/notice.txt. What does it say about berth B4?

Answer: The harbour service notice at http://127.0.0.1:8971/notice.txt is currently unreachable. However, according to the harbour's berth notes, berth B4 has a depth of 2.9 m, no crane, and is described as "shallow; check draught before allocating".

could not reach http://127.0.0.1:8971/notice.txt: <urlopen error [Errno 111] Connection refused>

The harbour service notice at http://127.0.0.1:8971/notice.txt is currently unreachable. However, according to the harbour's berth notes, berth B4 has a depth of 2.9 m, no crane, and is described as "shallow; check draught before allocating".

The harbour service notice at http://127.0.0.1:8971/notice.txt is currently unreachable. However, according to the harbour's berth notes, berth B4 has a depth of 2.9 m, no crane, and is described as "shallow; check draught before allocating".


Prompt: What does the abbreviation ETA stand for?

Answer: ETA stands for Estimated Time of Arrival.

ETA stands for Estimated Time of Arrival.

ETA stands for Estimated Time of Arrival.


Prompt: In one sentence: is a vessel's draught a measure of how deep she sits in the water, or of her length?

Answer: A vessel's draught is a measure of how deep she sits in the water.

A vessel's draught is a measure of how deep she sits in the water.

A vessel's draught is a measure of how deep she sits in the water.


Prompt: How many hours are there in a fortnight?

Answer: There are 336 hours in a fortnight.

There are 336 hours in a fortnight.

There are 336 hours in a fortnight.


Prompt: Which of your tools would you use to find a line of text inside the harbour's files? Name it — do not run it.

Answer: search_text


Prompt: What is the wind speed at Kettleburn Harbour at this moment? Bear in mind the harbour pack contains no weather data.

{"path": "README.md", "line_span": [1, 18], "total_lines": 18, "content": "# Kettleburn Harbour — operations pack\n\nThis is the whole world the tool-using model can see. It is a small, invented\nharbour office. Nothing here refers to anything real, so a model cannot answer\nfrom memory: every fact has to come out of a tool call.\n\nDirectories:\n\n- `harbor/` — the inventory, the sailing schedule, and the berth notes.\n- `ledger/` — the harbour ledger (a CSV) and the conventions that explain it.\n- `logs/` — the gate log, one file per day, named `YYYY-MM-DD.log`.\n- `crew/` — the crew roster …[truncated]

could not reach http://127.0.0.1:8971/weather: <urlopen error [Errno 111] Connection refused>

could not reach http://127.0.0.1:8971/: <urlopen error [Errno 111] Connection refused>

Question: coordinates

Question: coordinates

Question: coordinates


Prompt: Read the crew roster and tell me who stands the middle watch.

Answer: Ivers Danne stands the middle watch.

transient read error on the corpus volume; the read did not complete. Retrying the same path is expected to succeed.

# Crew roster

One name per watch per role. The middle watch runs midnight to four.

| name         | role         | watch     |
|--------------|--------------|-----------|
| Mabry Cole   | watch keeper | forenoon  |
| Ivers Danne  | watch keeper | middle    |
| Sena Roque   | crane hand   | afternoon |
| Tolt Berrin  | ledger clerk | forenoon  |
| Hale Quist   | berth master | first     |

Ivers Danne stands the middle watch.

Ivers Danne stands the middle watch.


Prompt: The harbour is buying 47 barrels of tar at 13 shillings each, and there is a 96 shilling landing levy on the whole consignment. What is the total cost in shillings?

Answer: The total cost is 707 shillings.

The total cost is 707 shillings.

The total cost is 707 shillings.


Prompt: How far is 12 nautical miles in kilometres?

Answer: 12 nautical miles is 22.224 kilometres.

12 nautical miles is 22.224 kilometres.

12 nautical miles is 22.224 kilometres.


Prompt: How many days are there from 2026-08-12 to 2026-09-02?

Answer: There are 21 days from 2026-08-12 to 2026-09-02.

There are 21 days from 2026-08-12 to 2026-09-02.

There are 21 days from 2026-08-12 to 2026-09-02.


Prompt: What is the date and time on the harbour office clock right now?

Answer: The date and time on the harbour office clock is Wednesday, August 12, 2026, at 09:00:00.

The date and time on the harbour office clock is Wednesday, August 12, 2026, at 09:00:00.

The date and time on the harbour office clock is Wednesday, August 12, 2026, at 09:00:00.


Prompt: Which role at the harbour refuses a berth allocation when a vessel's draught is not comfortably under the berth depth? The crew duties file says.

Answer: The role that refuses a berth allocation when a vessel's draught is not comfortably under the berth depth is the **berth master**.

The role that refuses a berth allocation when a vessel's draught is not comfortably under the berth depth is the **berth master**.

The role that refuses a berth allocation when a vessel's draught is not comfortably under the berth depth is the **berth master**.


Prompt: How many vessels are recorded in the harbour database?

Answer: There are 5 vessels recorded in the harbour database.

There are 5 vessels recorded in the harbour database.

There are 5 vessels recorded in the harbour database.


Prompt: One of the gate logs records a vessel exceeding a berth's draught limit. Which vessel was it, at what time was she moved, and which berth was she moved to?

Answer: The vessel was the Tide Cutter; she was moved at 09:26:02-06:00 on 2026-08-02 to berth B3.

Question: draught limit

Question: draught limit

Question: draught

Question: draught limit

Question: draught

The vessel was the Tide Cutter; she was moved at 09:26:02-06:00 on 2026-08-02 to berth B3.

The vessel was the Tide Cutter; she was moved at 09:26:02-06:00 on 2026-08-02 to berth B3.


Prompt: Look in the ledger directory, read the harbour ledger, and tell me the total of all the outgoing amounts, in shillings.

Answer: The total of all outgoing amounts in the harbour ledger is 1,195 shillings.

The total of all outgoing amounts in the harbour ledger is 1,195 shillings.

The total of all outgoing amounts in the harbour ledger is 1,195 shillings.


Prompt: Kestrel Reach is due to sail. Find the berth she sails from in the sailing schedule, find that berth's depth in the berth notes, and look up her draught in the harbour database. Does the berth take her?

Answer: Kestrel Reach is scheduled to sail from berth B3. According to the berth notes, berth B3 has a depth of 5.0 m. The harbour database lists the draught of Kestrel Reach as 4.1 m. Since the berth depth exceeds her draught, the berth does take her.

Question: Kestrel Reach

Question: Kestrel Reach

Question: Kestrel Reach

SELECT draught_m FROM vessels WHERE name = 'Kestrel Reach'

Kestrel Reach is scheduled to sail from berth B3. According to the berth notes, berth B3 has a depth of 5.0 m. The harbour database lists the draught of Kestrel Reach as 4.1 m. Since the berth depth exceeds her draught, the berth does take her.

Kestrel Reach is scheduled to sail from berth B3. According to the berth notes, berth B3 has a depth of 5.0 m. The harbour database lists the draught of Kestrel Reach as 4.1 m. Since the berth depth exceeds her draught, the berth does take her.


Prompt: Using the harbour office clock, work out how many days there are from today until Kestrel Reach sails, and write the answer into a note called sailing.txt.

Answer: There are 18 days from today (2026-08-12) until Kestrel Reach sails (2026-08-30). This answer has been written to sailing.txt.

Question: Kestrel Reach

Question: Kestrel Reach

SELECT v.name, vi.departed FROM vessels v JOIN visits vi ON v.id = vi.vessel_id WHERE v.name = 'Kestrel Reach' AND vi.departed >= '2024-01-01' ORDER BY vi.departed ASC LIMIT 1

SELECT v.name, vi.departed FROM vessels v JOIN visits vi ON v.id = vi.vessel_id WHERE v.name = 'Kestrel Reach' AND vi.departed >= '2026-08-12' ORDER BY vi.departed ASC LIMIT 1

SELECT vi.departed FROM visits vi JOIN vessels v ON vi.vessel_id = v.id WHERE v.name = 'Kestrel Reach' AND vi.departed >= '2026-08-12' ORDER BY vi.departed ASC LIMIT 1

Question: Kestrel Reach

There are 18 days from today (2026-08-12) until Kestrel Reach sails (2026-08-30). This answer has been written to sailing.txt.

There are 18 days from today (2026-08-12) until Kestrel Reach sails (2026-08-30). This answer has been written to sailing.txt.


Prompt: Fetch the tide reading from http://127.0.0.1:8971/tide.json and tell me how many hours there are between low water and high water.

Answer: I attempted to fetch the tide reading from `http://127.0.0.1:8971/tide.json`, but the connection was refused. As a result, I cannot determine the times for low and high water or calculate the hours between them.

I attempted to fetch the tide reading from `http://127.0.0.1:8971/tide.json`, but the connection was refused. As a result, I cannot determine the times for low and high water or calculate the hours between them.

I attempted to fetch the tide reading from `http://127.0.0.1:8971/tide.json`, but the connection was refused. As a result, I cannot determine the times for low and high water or calculate the hours between them.


Prompt: Which berth has a crane? Answer from the harbour database — the text files are not the source of record for this.

Answer: Berth B3 has a crane.

SELECT code FROM berths WHERE has_crane = 1

Berth B3 has a crane.

Berth B3 has a crane.


Prompt: The harbour service publishes today's notice at http://127.0.0.1:8971/notice.txt. What does it say about berth B4?

Answer: The harbour service notice at http://127.0.0.1:8971/notice.txt is currently unreachable. However, according to the harbour's berth notes, berth B4 has a depth of 2.9 m, no crane, and is described as "shallow; check draught before allocating".

The harbour service notice at http://127.0.0.1:8971/notice.txt is currently unreachable. However, according to the harbour's berth notes, berth B4 has a depth of 2.9 m, no crane, and is described as "shallow; check draught before allocating".

The harbour service notice at http://127.0.0.1:8971/notice.txt is currently unreachable. However, according to the harbour's berth notes, berth B4 has a depth of 2.9 m, no crane, and is described as "shallow; check draught before allocating".


Prompt: What does the abbreviation ETA stand for?

Answer: ETA stands for Estimated Time of Arrival.

ETA stands for Estimated Time of Arrival.

ETA stands for Estimated Time of Arrival.


Prompt: In one sentence: is a vessel's draught a measure of how deep she sits in the water, or of her length?

Answer: A vessel's draught is a measure of how deep she sits in the water.

A vessel's draught is a measure of how deep she sits in the water.

A vessel's draught is a measure of how deep she sits in the water.


Prompt: How many hours are there in a fortnight?

Answer: There are 336 hours in a fortnight.

There are 336 hours in a fortnight.

There are 336 hours in a fortnight.


Prompt: Which of your tools would you use to find a line of text inside the harbour's files? Name it — do not run it.

Answer: search_text


Prompt: What is the wind speed at Kettleburn Harbour at this moment? Bear in mind the harbour pack contains no weather data.

Question: coordinates

Question: coordinates

Question: coordinates


Prompt: Read the crew roster and tell me who stands the middle watch.

Answer: Ivers Danne stands the middle watch.

Ivers Danne stands the middle watch.

Ivers Danne stands the middle watch.