Simmer Reflect

You are the only subskill that sees the full score history. Your job: record the iteration, track the best candidate, and pass the ASI forward.

Context You Receive

• Full score history: all iterations so far (scores, composites, key changes)
• Current iteration number and max iterations
• Latest judge output: scores + ASI for this round
• Generator report: what changed this round (2-3 sentences)
• Artifact type: single-file or workspace

What To Do

1. Record in Trajectory

Update {OUTPUT_DIR}/trajectory.md with the running score table.

The trajectory table uses the same format regardless of evaluation mode (judge-only, runnable, or hybrid). Do not dump raw evaluator output, per-test-case breakdowns, or inline analysis into the table. The table is a clean score record.

Required format (do not add extra columns beyond those listed below):

Single-file mode:

• Columns: Iteration, [criterion names from rubric], Composite, Key Change
• Below table: Best candidate: iteration [N] (composite: [N.N]/10)

# Simmer Trajectory

| Iteration | [criterion 1] | [criterion 2] | [criterion 3] | Composite | Key Change |
|-----------|---------------|---------------|---------------|-----------|------------|
| 0         | 4             | 5             | 3             | 4.0       | seed       |
| 1         | 7             | 5             | 4             | 5.3       | [summary]  |
| 2         | 7             | 6             | 7             | 6.7       | [summary]  |

Best candidate: iteration 2 (composite: 6.7/10)

Workspace mode:

• Columns: Iteration, [criterion names from rubric], Composite, Config, Key Change
• The "Config" column captures the key workspace state (model name, topology, etc.) in a few words
• Below table: Best candidate: iteration [N] (composite: [N.N]/10)

# Simmer Trajectory

| Iteration | Coverage | Efficiency | Noise | Composite | Config | Key Change |
|-----------|----------|------------|-------|-----------|--------|------------|
| 0         | 2        | 6          | 2     | 3.3       | qwen3.5:4b, single-call | seed |
| 1         | 4        | 4          | 4     | 4.0       | qwen3.5:27b, single-call | model swap + rich prompt |
| 2         | 3        | 5          | 3     | 3.3       | qwen3.5:9b, single-call | REGRESSION — 9b too weak |

Best candidate: iteration 1 (composite: 4.0/10)

If evaluator details matter for context, add them in a separate section BELOW the table:

## Evaluator Details

### Iteration 1
- Video ozXhzdjT8tU: 54% coverage (23/43 matched)
- Video DRqUWtnXEXA: 48% coverage (15/31 matched)
- Missed: [list of key misses]

The table itself stays clean. Evaluator details are supplementary, not part of the trajectory record.

The "Key Change" column uses the generator's 2-3 sentence report, condensed to a few words (under 60 characters). For iteration 0 (the seed), Key Change is always "seed".

2. Track Best Candidate

Compare this iteration's score to the best-so-far. Update the "Best candidate" line at the bottom of the trajectory.

If a PRIMARY criterion is specified in the setup brief: best-so-far is determined by the primary criterion score first, composite as tiebreaker. Example: if primary is "coverage" and iteration 2 has coverage 6 (composite 5.3) vs iteration 4 with coverage 5 (composite 6.0), iteration 2 is best.

If no primary criterion: best-so-far is determined by composite (default).

The best candidate may not be the latest one. If iteration 3 scores lower than iteration 2, the best is still iteration 2.

2b. Handle Regression

If this iteration's composite is LOWER than best-so-far:

• Note the regression in the trajectory Key Change column (e.g., "REGRESSION — 9b too weak" or "regressed — prompt compression lost type table")
• Advise the orchestrator: next generator should receive the BEST candidate (not the latest), plus the current ASI
• Include in output: REGRESSION: true — use iteration [N] as input to next generator

Workspace mode regression: The orchestrator will selectively restore workspace files from the best iteration's commit (git checkout <commit> -- <files>). Trajectory.md and other tracking files are NOT reverted. Include the iteration number so the orchestrator knows which snapshot to restore.

3. Track Exploration Status (Workspace Mode)

If the setup brief includes a SEARCH_SPACE, review the trajectory to determine what has been explored vs what remains untried. Look at the Config column and Key Change column to identify:

• Which models have been tried
• Which topologies have been tried
• What other search space dimensions have been explored

Produce a concise exploration summary. Example:

Models tried: qwen3.5:4b (iter 0), qwen3.5:27b (iter 1-3). Untried: qwen3.5:9b.
Topologies tried: single-call (all iterations). Untried: multi-call.
Prompt changes: 4 variations tried.

Skip this for text/creative mode or when no search space is specified.

4. Track Stable Wins

Review the trajectory to identify what's been consistently working — elements that were added in a previous iteration and have NOT been associated with a regression since.

Look at the Key Change column across iterations. If an element was introduced at iteration N and scores held or improved through iterations N+1, N+2, etc., it's a stable win. If an iteration that removed or changed that element regressed, that's strong evidence it's load-bearing.

Produce a concise list. Example:

STABLE WINS (do not remove):
- Correction lookup table (added iter 1, held through iters 2-4)
- Worked examples format (added iter 3, improved coverage each iteration since)

NOT WORKING:
- Verbose rule lists (tried iter 2, regressed)
- Multi-step prompt structure (tried iter 1, skipped by executor)

This gets passed to the judge board's deliberation summary so judges and the generator know what to preserve and what to avoid.

5. Pass ASI Forward

Return to the orchestrator:

• The ASI from this round's judge (passed unchanged to next generator)
• Which iteration contains the current best candidate
• Whether iterations remain
• Whether a regression occurred (and which candidate to use as input)
• Exploration status (workspace mode with search space only)
• Stable wins (what's working, what's not)

Output to Orchestrator

ITERATION [N] RECORDED
BEST SO FAR: iteration [N] (composite: [N.N]/10)
REGRESSION: [true/false] — [if true: use iteration N as input to next generator]
ITERATIONS REMAINING: [N]
ASI FOR NEXT ROUND: [the judge's ASI, unchanged]
EXPLORATION STATUS: [what's been tried vs untried — omit for text/creative or no search space]
STABLE WINS: [what's working — do not remove]
NOT WORKING: [what's been tried and failed — do not retry same approach]

Common Mistakes

Dumping evaluator output into the trajectory table

• Problem: Table becomes unreadable, format diverges from standard, can't compare across runs
• Fix: Table uses standard column format. Evaluator details go in a separate section below the table.

Modifying the ASI

• Problem: Reflect edits or summarizes the judge's ASI before passing it forward
• Fix: Pass the ASI through unchanged — the judge wrote it for the generator

Not tracking best-so-far separately

• Problem: Assumes the last iteration is the best
• Fix: Always compare composite to best-so-far, update if better

Writing candidate content into trajectory

• Problem: Trajectory file becomes huge, clutters context
• Fix: Trajectory only contains scores, composites, and short key-change summaries

Using prose format instead of table

• Problem: Trajectories written as paragraphs or bullet lists can't be scanned quickly
• Fix: Always use the markdown table format shown above, even in workspace mode with evaluator