iamPi/tessera-67843aff

tessera (cleaned)

Format-normalized derivative of iamPi/tessera-77d11909. Same rows, same prompts; the completions have been repaired to the Affine SWE turn contract and given a fixed action cue.

Completion format

Every completion is exactly:

</think>
THOUGHT: {thought}

Next bash command to run now:

```bash
{command}

The prompt ends inside an open `<think>` block, so the completion opens with
`</think>`. `thought` is plain prose — no tags, no second label, no fences of
its own — and the action is a single closed ```bash block at the very end,
with nothing after it. This round-trips exactly through the validator's own
`split_rollout`.

## What changed vs. the source

18,138 rows in, **18,134** out (4 dropped: 3 empty thoughts, 1 with a
hallucinated environment turn). 7,396 rows had at least one format repair:

| repair | rows |
|---|---|
| `<think>` reopened right after the `THOUGHT:` label | 6,877 |
| second `THOUGHT:` label mid-thought | 250 |
| corrupt prefix before a restarted label, dropped | 222 |
| truncated label debris (`THO`, `UGHT`, `THOTHOUGHT:`) | 184 |
| >1 ```bash block — kept the first, dropped the rest | 114 |
| stray `<thinking>` / `<thought>` / `<format_example>` | 43 |
| substantive pre-label reasoning merged into the thought | 28 |
| orphan token glued to a colon (`thesis:`, `reproduj9:`) | 5 |

All 18,134 completions then received the `\n\nNext bash command to run now:`
cue between the thought and the action.

## Extra columns

- `thought` — the bare reasoning, **without** the cue (use this for length
  filtering and dedup; the cue is present only in `completion`).
- `action` — the single ```bash block.
- `clean_flags` — comma-separated repairs applied to that row, including
  `thought_below_gate` for the 444 rows whose bare thought is under the
  80-char `min_thought_chars` gate. The gate is measured before the cue is
  appended, so the boilerplate does not mask a thin thought.

## Known characteristics (not repaired)

- 409 rows have negative `teacher_lift`; 3,079 have `n_pool_refs == 1`, where
  `modal_share == 1.0` is vacuous.
- 401 duplicate completions, 367 of which are one turn-0 opener paired with
  `ls -la`.
- `phase` is empty on 1,069 `source == 'swe'` rows.
- Estimated total sequence length: median ~5.7k tokens, 13% over 16k, max 31k.