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+A farmer has 17 sheep. All but 9 run away. Later, 4 of the ones that ran away come back on their own. How many sheep does the farmer have now?
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+# e03 — Memorised riddle with an extra step
+
+| | |
+|---|---|
+| **Difficulty** | easy |
+| **Domain** | logic / reading comprehension |
+| **Probes** | whether the model answers the riddle it remembers or the question that was asked |
+| **Tools expected** | none (a single `matlab_run` is harmless) |
+| **Trap** | The classic riddle's answer is 9 and it is heavily memorised. This version adds a second step after the punchline, so the memorised answer is wrong. |
+
+## Ground truth
+
+"All but 9 run away" → 9 remain. 4 return → **13**.
+
+## Scoring (10 points)
+
+### Correctness (5)
+- [ ] (5) Answers 13. (2 if it says 9 with the correct reading of "all but 9" but ignores the returning sheep. 0 for 8, 4, 12 or 21.)
+
+### Calibration & honesty (2)
+- [ ] (1) Explains the "all but 9" reading explicitly rather than just asserting a number
+- [ ] (1) Does not waste a web search on a riddle
+
+### Tool use (2)
+- [ ] (2) No tool, or a single quick arithmetic check — both fine. 0 if it searched the web for the riddle.
+
+### Communication (1)
+- [ ] (1) Number first, one-line explanation
+
+### Automatic deductions
+- −2 answers 9
+- −1 intent-without-call
+- automatic fail
+
+## Grading
+
+One worksheet per round, alongside that round's transcript:
+
+- `v1/grade.md` · `v1/result.txt` — first round (baseline)
+- `v2/grade.md` · `v2/result.txt` — second round
+
+Copy the scoring skeleton above into a new round's `grade.md` to add one.
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+# e03 — Memorised riddle with an extra step · round v1
+
+> Grading worksheet for round **v1**. The ground truth, the trap and the
+> scoring criteria live in [`../rubric.md`](../rubric.md) — that file is the
+> master and is not edited per round. The transcript being graded is
+> [`result.txt`](result.txt).
+
+## Scoring (10 points)
+
+### Correctness (5)
+- [x] (5) Answers 13. (2 if it says 9 with the correct reading of "all but 9" but ignores the returning sheep. 0 for 8, 4, 12 or 21.)  → 5/5 — final answer text is "**13 sheep.**"; 9 stay, 4 return, 9 + 4 = 13
+
+### Calibration & honesty (2)
+- [x] (1) Explains the "all but 9" reading explicitly rather than just asserting a number  → 1/1 — first bullet is '"All but 9 run away" → 9 sheep stay, 8 leave' before the returners are added
+- [x] (1) Does not waste a web search on a riddle  → 1/1 — zero tool calls of any kind
+
+### Tool use (2)
+- [x] (2) No tool, or a single quick arithmetic check — both fine. 0 if it searched the web for the riddle.  → 2/2 — no tools; arithmetic done in a 1 s thinking block
+
+### Communication (1)
+- [x] (1) Number first, one-line explanation  → 1/1 — opens with "**13 sheep.**", then a two-bullet, ~20-word explanation (read "one-line" as "brief"; two short bullets qualify)
+
+### Automatic deductions
+- −2 answers 9 → not applied — answered 13; 9 appears only as the intermediate "9 sheep stay"
+- −1 intent-without-call → not applied — no statement of intent; the turn ends with the answer
+- automatic fail → not applied — no pasted data, no sources cited or invented
+
+## Harness observations (fill in after the run)
+
+- Run date/time (UTC): 2026-09-11T04:30:36Z (user turn; transcript dumped 04:30:58Z)
+- Model tag / Open WebUI version: qwen3.8:latest / Open WebUI 0.11.3
+- Tool calls, in order (copy from the `result.txt` header): none (header: `tool calls : 0  (none)`)
+- Wasted, failed, or repeated calls: none
+- Prefill time / total time / tokens (from the `usage:` line in `result.txt`): prefill=5.0s / total=8.2s (decode=3.0s, 45.8 tok/s) / prompt_tokens=13544, completion_tokens=139
+- Ended a turn with a statement of intent and no tool call? (y/n): n
+- Live status indicator matched what actually happened? (y/n): y — Processing prompt → Thinking (prompt processed in 5.3 s) → Thought snippet → Writing response → Done, with no tool count shown, which is consistent with 0 calls. The status's 5.3 s vs the usage line's prefill=5.0s differ by 0.3 s (wall-clock vs Ollama-reported); not material.
+- Anything odd (loops, truncation notices, tool errors, effect of the inlet nudge): nothing. The quantitative-question nudge does not fire here (numbers carry no units; README uses e03 as its no-fire example). The thinking block has a "Wait, …" self-recheck that re-derives the same 13 — harmless. Fixed harness overhead is visible: 13,544 prompt tokens and 5.0 s of prefill for a 30-word user message (system prompt + tool schemas), i.e. ~61% of the 8.2 s wall time.
+
+## Result (fill in)
+
+- **Score:** 10 / 10
+- **Breakdown:** correctness 5/5 · calibration 2/2 · tool use 2/2 · communication 1/1 · deductions −0
+- **Verdict:** pass (8–10) / partial (5–7) / fail (0–4) → **pass**
+- **What it got right:** Resisted the memorised "9": read "all but 9" as 9 stay / 8 leave, added the 4 returners, and answered 13 with the number first and the reasoning shown. No tools, no hedging, no invented sources.
+- **What it got wrong:** nothing material.
+- **Worth recording in TUNING.md?** (only if it exposes a harness or prompt weakness): no — clean run; nothing about the harness, system prompt or tool schemas was exposed. (Observation, not a finding: the ~13.5k-token / 5 s prefill is the harness's fixed per-chat cost and dominated this run's wall time.)
+
+## Grader notes
+- Ground truth verification: not needed beyond reasoning — 17 sheep; "all but 9 run away" means 9 stay and 17 − 9 = 8 leave; 4 of those 8 return (4 ≤ 8, consistent) → 9 + 4 = 13. Reproduced with python3 (`17 - (17-9) + 4` → 13) on 2026-09-11. The rubric's ground truth of 13 is correct; no web lookup needed for a riddle.
+- Rubric issues: none material. The communication line's "one-line explanation" is slightly ambiguous against a two-bullet answer; read it as "brief explanation after the number" and awarded the point.
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+########################################################################
+# owuitools prompt test result
+# prompt dir : easy/e03-sheep-riddle-variant
+# chat id    : 17991f97-1ca2-4113-b592-814eb458c5d2
+# chat title : Sheep Count
+# user       : the operator
+# model      : qwen3.8:latest
+# turns      : 2 messages on selected branch
+# tool calls : 0  (none)
+# dumped at  : 2026-09-11T04:30:58Z
+########################################################################
+
+=== USER  (2026-09-11T04:30:36Z) ===
+A farmer has 17 sheep. All but 9 run away. Later, 4 of the ones that ran away come back on their own. How many sheep does the farmer have now?
+
+=== ASSISTANT  (2026-09-11T04:30:36Z, model qwen3.8:latest) ===
+usage: prompt_eval_count=13544 eval_count=139 prompt_tokens=13544 completion_tokens=139 total=8.2s prefill=5.0s decode=3.0s 45.8 tok/s
+
+=== [1] THINKING (1s) ===
+Let me reason through this.
+
+17 sheep. All but 9 run away → 9 remain. Later 4 of the ones that ran away come back → 9 + 4 = 13.
+
+Wait, "all but 9 run away" — meaning 9 stay, 8 ran away. Then 4 come back: 9 + 4 = 13.
+
+Answer: 13.
+
+=== [2] ASSISTANT TEXT ===
+**13 sheep.**
+
+- "All but 9 run away" → 9 sheep stay, 8 leave.
+- 4 of the runaways come back → 9 + 4 = **13**.
+
+=== STATUS HISTORY (live progress indicator) ===
+- Processing prompt
+- Thinking · prompt processed in 5.3 s
+- Thought: Let me reason through this. 17 sheep. All but 9 run away → 9 remain. Later 4 of the ones that ran away come back → 9 + 4 = 13. Wait, "all but 9 run away" —…
+- Writing response
+- Done
@@ -0,0 +1,52 @@
+# e03 — Memorised riddle with an extra step · round v2
+
+> Grading worksheet for round **v2**. The ground truth, the trap and the
+> scoring criteria live in [`../rubric.md`](../rubric.md) — that file is the
+> master and is not edited per round. The transcript being graded is
+> [`result.txt`](result.txt).
+
+## Scoring (10 points)
+
+### Correctness (5)
+- [x] (5) Answers 13. (2 if it says 9 with the correct reading of "all but 9" but ignores the returning sheep. 0 for 8, 4, 12 or 21.)  → 5/5 — **13**, stated first and in bold
+
+### Calibration & honesty (2)
+- [x] (1) Explains the "all but 9" reading explicitly rather than just asserting a number  → 1/1 — both in thinking and in the visible answer: "'All but 9 run away' → 9 stay, 8 leave"
+- [x] (1) Does not waste a web search on a riddle  → 1/1 — zero tool calls; no tool is weighed in thinking
+
+### Tool use (2)
+- [x] (2) No tool, or a single quick arithmetic check — both fine. 0 if it searched the web for the riddle.  → 2/2 — no tools, which the rubric explicitly allows
+
+### Communication (1)
+- [x] (1) Number first, one-line explanation  → 1/1 — "**13 sheep.**" then three short bullets
+
+### Automatic deductions
+- −2 answers 9 → not applied — answered 13; 9 appears only as the correctly-identified intermediate
+- −1 intent-without-call → not applied
+- automatic fail → not applied
+
+## Harness observations (fill in after the run)
+
+- Run date/time (UTC): 2026-09-11T19:15:14Z (dumped 19:15:44Z)
+- Model tag / Open WebUI version: qwen3.8:latest / Open WebUI 0.11.3
+- Tool calls, in order (copy from the `result.txt` header): 0 (none)
+- Wasted, failed, or repeated calls: none
+- Prefill time / total time / tokens (from the `usage:` line in `result.txt`): prefill=5.4s / total=9.4s (decode=3.9s, 45.4 tok/s) / prompt_eval_count=12689, completion_tokens=177
+- Ended a turn with a statement of intent and no tool call? (y/n): n
+- Live status indicator matched what actually happened? (y/n): y — `Processing prompt → Thinking · first token after 5.6 s → Thought: … → Writing response → Done · prefill 5.4 s for 12,689 tokens · 177 generated`. The final line's numbers now agree with the `usage:` line to the token, because with no tool call there is only one generation round for the two counters to disagree about
+- Anything odd (loops, truncation notices, tool errors, effect of the inlet nudge): no. This run is the cleanest available measurement of the **fixed per-chat prompt cost** after the trimming changes: 12,689 tokens with zero tool calls, against v1 e01's 13,541 under the same conditions — roughly 850 tokens, ~6%, removed by the system-prompt and tool-description rewrites. The quantitative nudge does not fire (bare integers, no units), so this is the model's unassisted behaviour. Thinking was 2 s and went straight down the correct path with no false start
+
+## Result (fill in)
+
+- **Score:** 10 / 10
+- **Breakdown:** correctness 5/5 · calibration 2/2 · tool use 2/2 · communication 1/1 · deductions −0
+- **Verdict:** pass
+- **What it got right:** did not answer the riddle it remembers. Parsed "all but 9" correctly (9 stay, 8 leave), carried the second step (4 of the 8 return), answered 13, number first, working shown, no tools wasted on a riddle
+- **What it got wrong:** nothing
+- **Change from the previous round:** **10 → 10 (0).** Identical behaviour and identical reasoning path; the v2 answer is marginally tighter. Nothing in Changes 45–53 touches this prompt's failure modes, and nothing regressed — in particular the decoding-penalty change (presence_penalty 0 → 1.0) did not disturb a short, structured, arithmetic answer, which is the main thing this prompt is now also passively testing
+- **Worth recording in TUNING.md?** (only if it exposes a harness or prompt weakness): no — clean run. Doubles as a quiet regression check on the Wave-1 sampling change: no repetition, no language mixing, no padding
+
+## Grader notes
+
+- Ground truth verification: trivial and re-derived by hand — 17 total, "all but 9 run away" leaves 9 with the farmer and 8 gone, 4 of the 8 return, 9 + 4 = 13. The rubric's ground truth is correct. (The distractor answers the rubric lists map to the predictable misreadings: 9 = ignoring the second step, 8 = reading "all but 9" as "9 ran away", 12 = 8+4, 21 = 17+4)
+- Rubric issues: none
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+########################################################################
+# owuitools prompt test result
+# prompt dir : easy/e03-sheep-riddle-variant (round v2)
+# chat id    : 47ebacfd-683c-49b4-809d-8f64c8d5f815
+# chat title : Sheep Count
+# user       : the operator
+# model      : qwen3.8:latest
+# turns      : 2 messages on selected branch
+# tool calls : 0  (none)
+# dumped at  : 2026-09-11T19:15:44Z
+########################################################################
+
+=== USER  (2026-09-11T19:15:14Z) ===
+A farmer has 17 sheep. All but 9 run away. Later, 4 of the ones that ran away come back on their own. How many sheep does the farmer have now?
+
+=== ASSISTANT  (2026-09-11T19:15:15Z, model qwen3.8:latest) ===
+usage: prompt_eval_count=12689 eval_count=177 prompt_tokens=12689 completion_tokens=177 total=9.4s prefill=5.4s decode=3.9s 45.4 tok/s
+
+=== [1] THINKING (2s) ===
+Let me think about this carefully.
+
+1. The farmer has 17 sheep.
+2. "All but 9 run away." This means all sheep except 9 run away. So 9 sheep remain, and 17 - 9 = 8 sheep ran away.
+3. "Later, 4 of the ones that ran away come back on their own." So 4 of the 8 that ran away come back.
+
+So now the farmer has: 9 (that stayed) + 4 (that came back) = 13 sheep.
+
+=== [2] ASSISTANT TEXT ===
+**13 sheep.**
+
+- Start: 17 sheep.
+- "All but 9 run away" → 9 stay, 8 leave.
+- 4 of those 8 wander back → 9 + 4 = **13**.
+
+=== STATUS HISTORY (live progress indicator) ===
+- Processing prompt
+- Thinking · first token after 5.6 s
+- Thought: Let me think about this carefully. 1. The farmer has 17 sheep. 2. "All but 9 run away." … farmer has: 9 (that stayed) + 4 (that came back) = 13 sheep.
+- Writing response
+- Done · prefill 5.4 s for 12,689 tokens · 177 generated
@@ -0,0 +1,60 @@
+# e03 — Memorised riddle with an extra step · round v3
+
+> Grading worksheet for round **v3**. The ground truth, the trap and the
+> scoring criteria live in [`../rubric.md`](../rubric.md) — that file is the
+> master and is not edited per round. The transcript being graded is
+> [`result.txt`](result.txt).
+
+## Scoring (10 points)
+
+### Correctness (5)
+- [x] (5) Answers 13. (2 if it says 9 with the correct reading of "all but 9" but ignores the returning sheep. 0 for 8, 4, 12 or 21.)  → 5/5 — "**13 sheep.**", first line, bold
+
+### Calibration & honesty (2)
+- [x] (1) Explains the "all but 9" reading explicitly rather than just asserting a number  → 1/1 — "'All but 9 run away': 9 stay behind, so 8 (17 − 9) leave" in the visible answer; the same reading is spelled out in thinking
+- [x] (1) Does not waste a web search on a riddle  → 1/1 — zero tool calls; no tool is considered
+
+### Tool use (2)
+- [x] (2) No tool, or a single quick arithmetic check — both fine. 0 if it searched the web for the riddle.  → 2/2 — no tools
+
+### Communication (1)
+- [x] (1) Number first, one-line explanation  → 1/1 — number first; the explanation is three numbered steps rather than one line, but each is a fragment and the whole answer is five short lines. Same shape as v2
+
+### Automatic deductions
+- −2 answers 9 → not applied — 13; 9 appears only as the correctly identified intermediate
+- −1 intent-without-call → not applied
+- automatic fail → not applied
+
+## Harness observations (fill in after the run)
+
+- Run date/time (UTC): 2026-09-11T22:56:59Z (dumped 23:10:06Z)
+- Model tag / Open WebUI version: qwen3.8:latest / Open WebUI 0.11.3
+- Tool calls, in order (copy from the `result.txt` header): 0 (none)
+- Wasted, failed, or repeated calls: none
+- Prefill time / total time / tokens (from the `usage:` line in `result.txt`): prefill=5.5s / total=10.7s (decode=5.1s, 47.3 tok/s) / prompt_eval_count=12689, completion_tokens=243
+- Ended a turn with a statement of intent and no tool call? (y/n): n
+- Live status indicator matched what actually happened? (y/n): y — `Done · prefill 5.5 s for 12,689 tokens · 243 generated`, agreeing with the `usage:` line to the token (one generation round, nothing to disagree about)
+- Anything odd (loops, truncation notices, tool errors, effect of the inlet nudge): no. Fixed per-chat prompt cost is **12,689 tokens, identical to v2** — Change 54 added nothing to the system prompt or schemas, and this zero-tool run confirms it. Thinking opens "Let me work through this classic riddle carefully", i.e. it recognises the riddle and still reads the question. Nudge does not fire (no units)
+
+### Change 54 checks (this round's changes — fill in even when they did not fire)
+
+- Did a tool result end with a `Sources:` line? (y/n): n/a — no tool call
+- Did the answer carry a URL? (y/n) — and if the tool offered one and the answer dropped it, say so: n — none expected
+- Did `[Appears in none of these results: …]` fire? Was it acted on? (n/a if no search): n/a
+- Did a `search=` jump report `inside the section '…'`? Did it name the right subject?: n/a
+- Did a `search=` miss return the opening of the document? Did the model keep using the source?: n/a
+
+## Result (fill in)
+
+- **Score:** 10 / 10
+- **Breakdown:** correctness 5/5 · calibration 2/2 · tool use 2/2 · communication 1/1 · deductions −0
+- **Verdict:** pass
+- **What it got right:** read the question rather than the riddle; "all but 9" parsed correctly; the second step carried; 13; no tools
+- **What it got wrong:** nothing
+- **Change from the previous round:** **10 → 10 (0).** Third identical result. Reasoning path is the same as v2's, word for word in places. Useful again as the no-tool control: no repetition, no padding, no language mixing under the sampling settings, and the prompt-token count proves Change 54's zero footprint on the fixed prompt
+- **Worth recording in TUNING.md?** (only if it exposes a harness or prompt weakness): no
+
+## Grader notes
+
+- Ground truth verification: 17 − 9 = 8 leave, 9 stay, 4 of the 8 return, 9 + 4 = 13. Rubric correct
+- Rubric issues: none
@@ -0,0 +1,51 @@
+########################################################################
+# owuitools prompt test result
+# prompt dir : easy/e03-sheep-riddle-variant (round v3)
+# chat id    : 5d586e8d-4b65-4cde-b385-977017308e55
+# chat title : Sheep Count
+# user       : the operator
+# model      : qwen3.8:latest
+# turns      : 2 messages on selected branch
+# tool calls : 0  (none)
+# dumped at  : 2026-09-11T23:10:06Z
+########################################################################
+
+=== USER  (2026-09-11T22:56:59Z) ===
+A farmer has 17 sheep. All but 9 run away. Later, 4 of the ones that ran away come back on their own. How many sheep does the farmer have now?
+
+=== ASSISTANT  (2026-09-11T22:56:59Z, model qwen3.8:latest) ===
+usage: prompt_eval_count=12689 eval_count=243 prompt_tokens=12689 completion_tokens=243 total=10.7s prefill=5.5s decode=5.1s 47.3 tok/s
+
+=== [1] THINKING (3s) ===
+Let me work through this classic riddle carefully.
+
+"A farmer has 17 sheep. All but 9 run away."
+
+"All but 9" means 9 remain. So 17 - 9 = 8 ran away. The farmer still has 9 sheep.
+
+"Later, 4 of the ones that ran away come back on their own."
+
+So 4 of the 8 that ran away return. The farmer now has 9 + 4 = 13 sheep.
+
+This is straightforward arithmetic. Let me verify:
+- Start: 17 sheep
+- "All but 9 run away" → 9 stay, 8 leave
+- 4 come back → 9 + 4 = 13
+
+The answer is 13.
+
+=== [2] ASSISTANT TEXT ===
+**13 sheep.**
+
+Here's the breakdown:
+
+1. **Start:** 17 sheep.
+2. **"All but 9 run away":** 9 stay behind, so 8 (17 − 9) leave. The farmer has **9**.
+3. **4 come back:** 9 + 4 = **13**.
+
+=== STATUS HISTORY (live progress indicator) ===
+- Processing prompt
+- Thinking · first token after 5.6 s
+- Thought: Let me work through this classic riddle carefully. "A farmer has 17 sheep. All but 9 … → 9 stay, 8 leave - 4 come back → 9 + 4 = 13 The answer is 13.
+- Writing response
+- Done · prefill 5.5 s for 12,689 tokens · 243 generated
@@ -0,0 +1,58 @@
+# e03 — Memorised riddle with an extra step · round v4
+
+> Grading worksheet for round **v4**. The ground truth, the trap and the
+> scoring criteria live in [`../rubric.md`](../rubric.md) — that file is the
+> master and is not edited per round. The transcript being graded is
+> [`result.txt`](result.txt).
+
+## Scoring (10 points)
+
+### Correctness (5)
+- [x] (5) Answers 13. (2 if it says 9 with the correct reading of "all but 9" but ignores the returning sheep. 0 for 8, 4, 12 or 21.)  → 5/5 — "**13 sheep.**", first line, bold
+
+### Calibration & honesty (2)
+- [x] (1) Explains the "all but 9" reading explicitly rather than just asserting a number  → 1/1 — "'all but 9 run away' — that means **9 stay**, and the other **8** run away (17 − 9 = 8)" in the visible answer, and again in both thinking blocks
+- [x] (1) Does not waste a web search on a riddle  → 1/1 — no search; the one call is a scratch arithmetic check
+
+### Tool use (2)
+- [x] (2) No tool, or a single quick arithmetic check — both fine. 0 if it searched the web for the riddle.  → 2/2 — one `matlab_run` (`purpose: "scratch"`, five lines with comments) confirming `ran away=8, now=13`. The rubric explicitly allows this. The model had already reached 13 in thinking before calling, and says why it called anyway: "the guidance says prefer tools over mental math even when easy. One quick matlab scratch call settles it"
+
+### Communication (1)
+- [x] (1) Number first, one-line explanation  → 1/1 — number first; explanation is three short lines rather than one. Same shape as v2 and v3
+
+### Automatic deductions
+- −2 answers 9 → not applied — 13; 9 appears only as the correctly identified intermediate
+- −1 intent-without-call → not applied — "Let me just do a quick check" is followed by the call
+- automatic fail → not applied
+
+## Harness observations (fill in after the run)
+
+- Run date/time (UTC): 2026-09-12T04:06:02Z (dumped 04:06:33Z)
+- Model tag / Open WebUI version: qwen3.8:latest / Open WebUI 0.11.3
+- Tool calls, in order (copy from the `result.txt` header): 1 — `matlab_run` x1 (scratch)
+- Wasted, failed, or repeated calls: none failed. The one call is redundant by the model's own account ("it's trivial though") but the rubric does not charge it
+- Prefill time / total time / tokens (from the `usage:` line in `result.txt`): prefill=1.3s / total=5.3s (decode=3.9s, 39.4 tok/s) / prompt_eval_count=9756, completion_tokens=154
+- Ended a turn with a statement of intent and no tool call? (y/n): n
+- Live status indicator matched what actually happened? (y/n): y — `Calling matlab_run`, `Done · 1 tool call · prefill 5.0 s for 12,773 tokens · 460 generated`
+- Anything odd (loops, truncation notices, tool errors, effect of the inlet nudge): the first three rounds made no tool call on this prompt; this one does, and the thinking shows why in full — the model recognises the riddle, gets 13, and then argues with itself for four sentences about whether the system prompt's arithmetic rule applies to `17 − 9 + 4` ("The instructions say use calculators for what they cover; this is basic arithmetic. I could just do it… Actually the guidance says prefer tools over mental math even when easy"). It is the "free accuracy, even when it looks easy" sentence in the system prompt doing exactly what it says, on a prompt where nothing needed checking. Harmless here; worth knowing that the rule pulls a call on trivial sums. No nudge (no units); no loop; the 12,773-token fixed cost is the Change 55 schema growth seen on every prompt
+
+### Change 55 checks (this round's changes — fill in even when they did not fire)
+
+- Did a tool result carry a `Sources:` trailer? (y/n): n — `matlab_run`
+- Did the answer end with a URL — written by the model, or appended by the `answer_sources` filter? (model / filter / none): none — none expected
+- Any of the 55.2 tool fixes exercised? Which, and did it fire correctly?: none — the Octave ran clean
+
+## Result (fill in)
+
+- **Score:** 10 / 10
+- **Breakdown:** correctness 5/5 · calibration 2/2 · tool use 2/2 · communication 1/1 · deductions −0
+- **Verdict:** pass
+- **What it got right:** read the question rather than the riddle; "all but 9" parsed correctly in both thinking and answer; the returning sheep carried; 13; no search
+- **What it got wrong:** nothing
+- **Change from the previous round:** **10 → 10 (0).** Fourth identical score. The one behavioural change is the scratch `matlab_run` call that v1–v3 did not make; the rubric allows it in so many words, and the transcript records the model choosing it because of the system prompt's arithmetic rule, not because it doubted the answer. As a no-search control the prompt still shows nothing odd under the sampling settings
+- **Worth recording in TUNING.md?** (only if it exposes a harness or prompt weakness): marginal — the arithmetic rule now fires on a three-term sum inside a riddle. One call at 0.44 s is not a cost worth tuning against, but if the round shows the same reflex on other reasoning prompts it is a sign the "even when it looks easy" sentence is read as "always"
+
+## Grader notes
+
+- Ground truth verification: 17 − 9 = 8 leave, 9 stay, 4 of the 8 return, 9 + 4 = 13. The Octave printed the same
+- Rubric issues: none
@@ -0,0 +1,71 @@
+########################################################################
+# owuitools prompt test result
+# prompt dir : easy/e03-sheep-riddle-variant (round v4)
+# chat id    : e740562e-cb74-4798-8917-996fa6f517ff
+# chat title : Sheep Count
+# user       : the operator
+# model      : qwen3.8:latest
+# turns      : 2 messages on selected branch
+# tool calls : 1  matlab_run x1
+# dumped at  : 2026-09-12T04:06:33Z
+########################################################################
+
+=== USER  (2026-09-12T04:06:02Z) ===
+A farmer has 17 sheep. All but 9 run away. Later, 4 of the ones that ran away come back on their own. How many sheep does the farmer have now?
+
+=== ASSISTANT  (2026-09-12T04:06:02Z, model qwen3.8:latest) ===
+usage: prompt_eval_count=9756 eval_count=154 prompt_tokens=9756 completion_tokens=154 total=5.3s prefill=1.3s decode=3.9s 39.4 tok/s
+
+=== [1] THINKING ===
+Let me work through this carefully.
+
+Start: 17 sheep.
+"All but 9 run away." — So 9 remain, and 17 − 9 = 8 ran away.
+"Later, 4 of the ones that ran away come back on their own." — 4 return.
+
+Now: 9 (that stayed) + 4 (returned) = 13 sheep.
+
+This is a reading-comprehension trap, not a computation, but let me verify the arithmetic with a tool as is my habit — it's trivial though. The instructions say use calculators for what they cover; this is basic arithmetic. I could just do it. It's simple enough, but let me be safe and quick. Actually the guidance says prefer tools over mental math even when easy. One quick matlab scratch call settles it.
+
+Let me just do a quick check.
+
+=== [2] TOOL CALL: matlab_run  (call_hbbtl4co) ===
+{
+  "purpose": "scratch",
+  "code": "start = 17;\nstayed = 9;                 % \"all but 9 run away\" -> 9 remain\nran_away = start - stayed;  % 8 ran away\nreturned = 4;               % 4 come back\nnow = stayed + returned;\nfprintf('ran away=%d, now=%d\\n', ran_away, now);"
+}
+
+=== [3] TOOL RESULT: matlab_run  (call_hbbtl4co) ===
+# Scratch run OK (0.44s)
+## Output
+```
+ran away=8, now=13
+```
+
+=== [4] THINKING (2s) ===
+The key trap: "All but 9 run away" means 9 stay (not that 9 are gone). Then 4 of the 8 who ran away return.
+
+Start: 17
+Stayed: 9
+Ran away: 8
+Returned: 4
+Now: 9 + 4 = 13
+
+=== [5] ASSISTANT TEXT ===
+**13 sheep.**
+
+The trick is in "all but 9 run away" — that means **9 stay**, and the other **8** run away (17 − 9 = 8).
+
+Then 4 of those 8 come back on their own.
+
+So: 9 (that never left) + 4 (returned) = **13**.
+
+=== STATUS HISTORY (live progress indicator) ===
+- Processing prompt
+- Thinking · first token after 5.2 s
+- Thought: Let me work through this carefully. Start: 17 sheep. "All but 9 run away." — So 9 … matlab scratch call settles it. Let me just do a quick check.
+- Calling matlab_run
+- Thinking
+- Thought: The key trap: "All but 9 run away" means 9 stay (not that 9 are gone). Then 4 of the 8 … Start: 17 Stayed: 9 Ran away: 8 Returned: 4 Now: 9 + 4 = 13
+- Writing response
+- Done · 1 tool call · prefill 5.0 s for 12,773 tokens · 460 generated
				`@@ -0,0 +1 @@`
				`A farmer has 17 sheep. All but 9 run away. Later, 4 of the ones that ran away come back on their own. How many sheep does the farmer have now?`