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Get Started Free →Explore codebase before committing to a change. Phase executor skill for specs.explore command.
.claude/skills/giuseppe-trisciuoglio-specs-explore/SKILL.md| Test case | Without → With | Effect | Δ tokens | Δ turns |
|---|---|---|---|---|
| case-11 | ✗→✓ | ▲ Improved | -47% | 0% |
| case-13 | ✗→✓ | ▲ Improved | -31% | 0% |
| case-17 | ✗→✓ | ▲ Improved | -7% | 0% |
| case-18 | ✗→✓ | ▲ Improved | -59% | 0% |
| case-12 | ✓→✗ | ▼ Worse | -64% | 0% |
Investigate the codebase, think through problems, compare approaches, and return a structured analysis. Only create exploration.md when --spec is provided.
The orchestrator will give you:
--spec path (optional)--lang framework (optional)Parse what the user wants to explore:
Read relevant code to understand:
INVESTIGATE:
├── Read entry points and key files
├── Search for related functionality (Grep)
├── Check existing tests (Glob)
├── Look for patterns already in use
└── Identify dependencies and couplingIf there are multiple approaches, compare them:
| Approach | Pros | Cons | Complexity | |----------|------|------|------------| | Option A | ... | ... | Low/Med/High | | Option B | ... | ... | Low/Med/High |
--spec is provided)If --spec=docs/specs/001-add-jwt-auth is specified, write to docs/specs/001-add-jwt-auth/exploration.md:
markdown## Exploration: {topic} ### Current State {How the system works today relevant to this topic} ### Affected Areas - `path/to/file.ext` — {why it's affected} - `path/to/other.ext` — {why it's affected} ### Approaches 1. **{Approach name}** — {brief description} - Pros: {list} - Cons: {list} - Effort: {Low/Medium/High} 2. **{Approach name}** — {brief description} - Pros: {list} - Cons: {list} - Effort: {Low/Medium/High} ### Recommendation {Your recommended approach and why} ### Risks - {Risk 1} - {Risk 2} ### Ready for Proposal {Yes/No — and what the user should know}
Return the same structured analysis (inline), plus:
Status Report:
done | blocked | partial{spec}/exploration.md (if --spec provided) or "none"specs.brainstorm (if spec provided) or none (if standalone)exploration.md inside the spec folder (if --spec provided)| Case | Status | Duration (ms) | Turns | Tokens | Tool calls | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Without | With | Δ | Without | With | Δ | Without | With | Δ | Without | With | Δ | ||
case-01 | fail→fail | 30,806 | 5,254 | -83% | 1 | 1 | 0% | 5,170 | 993 | -81% | 0 | 0 | — |
case-02 | fail→fail | 2,682 | 4,953 | +85% | 1 | 1 | 0% | 168 | 1,052 | +526% | 0 | 0 | — |
case-15 | fail→fail | 8,959 | 9,048 | +1% | 1 | 1 | 0% | 1,472 | 1,675 | +14% | 0 | 0 | — |
case-03 | fail→fail | 36,354 | 4,981 | -86% | 1 | 1 | 0% | 6,192 | 1,084 | -82% | 0 | 0 | — |
case-04 | pass→pass | 6,705 | 22,507 | +236% | 1 | 1 | 0% | 1,133 | 3,373 | +198% | 0 | 0 | — |
case-05 | pass→pass | 6,749 | 8,682 | +29% | 1 | 1 | 0% | 1,046 | 2,317 | +122% | 0 | 0 | — |
case-06 | fail→fail | 33,458 | 6,655 | -80% | 1 | 1 | 0% | 6,185 | 1,224 | -80% | 0 | 0 | — |
case-07 | fail→fail | 12,160 | 6,859 | -44% | 1 | 1 | 0% | 1,928 | 1,122 | -42% | 0 | 0 | — |
case-08 | fail→fail | 15,518 | 4,227 | -73% | 1 | 1 | 0% | 2,494 | 1,007 | -60% | 0 | 0 | — |
case-09 | fail→fail | 15,963 | 5,130 | -68% | 1 | 1 | 0% | 2,547 | 987 | -61% | 0 | 0 | — |
case-10 | fail→fail | 42,489 | 4,161 | -90% | 1 | 1 | 0% | 4,042 | 1,093 | -73% | 0 | 0 | — |
case-16 | fail→fail | 15,142 | 5,004 | -67% | 1 | 1 | 0% | 2,207 | 1,096 | -50% | 0 | 0 | — |
case-11 | fail→pass | 14,253 | 2,737 | -81% | 1 | 1 | 0% | 2,217 | 1,175 | -47% | 0 | 0 | — |
case-12 | pass→fail | 27,509 | 3,280 | -88% | 1 | 1 | 0% | 2,730 | 984 | -64% | 0 | 0 | — |
case-13 | fail→pass | 12,760 | 4,066 | -68% | 1 | 1 | 0% | 1,998 | 1,370 | -31% | 0 | 0 | — |
case-14 | fail→fail | 11,004 | 4,315 | -61% | 1 | 1 | 0% | 1,744 | 1,043 | -40% | 0 | 0 | — |
case-17 | fail→pass | 8,956 | 3,378 | -62% | 1 | 1 | 0% | 1,345 | 1,247 | -7% | 0 | 0 | — |
case-18 | fail→pass | 16,285 | 2,020 | -88% | 1 | 1 | 0% | 2,616 | 1,062 | -59% | 0 | 0 | — |
case-19 | pass→pass | 6,890 | 11,008 | +60% | 1 | 1 | 0% | 1,132 | 1,882 | +66% | 0 | 0 | — |
case-20 | pass→fail | 3,037 | 4,861 | +60% | 1 | 1 | 0% | 335 | 1,099 | +228% | 0 | 0 | — |
case-21 | fail→fail | 3,188 | 3,504 | +10% | 1 | 1 | 0% | 355 | 952 | +168% | 0 | 0 | — |
case-22 | pass→pass | 5,445 | 6,944 | +28% | 1 | 1 | 0% | 919 | 1,296 | +41% | 0 | 0 | — |
DecimalAI ran this skill against gemini-3.6-flash twice over the same eval suite — once with the skill loaded and once without — and compared the two runs case by case. 22 cases were attempted, and 8 counted toward the lift figure. The other 14 produced results that are not comparable between the two arms, so they are excluded from the headline rather than averaged into it. The headline lift of +9 percentage points is the difference between those two pass rates over the 8 comparable cases. 5 cases got worse with the skill loaded, and they are included in that figure.
Without the skill loaded, the model failed this case. With it loaded, the same prompt on the same model passed. This is one improved case from the latest verified run; every case, including any that regressed, is in the table above.
Other measured skills in the registry, with their headline benchmark lift.