Driftproof
Skills.sh snapshot 2026-10-17: text tasks
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hyperframes-animation

Here is what happened when we tested its written answers, with and without the skill.
About this test

hyperframes-animation: Skills.sh snapshot 2026-10-17: text tasks by Driftproof; Haiku 5.5 judge; eval account checked before/after runs, not during

Report 015: Skills.sh snapshot 2026-10-17: text tasks

Skill skills/hyperframes-animation in heygen-com/hyperframes.

Each result has its own test record. Results are not combined.

Measured results

Both model sets use Haiku 5.5 as judge.

Driftproof measured

Answering model: Opus 5.5. Judge: Haiku 5.5. Date: 2026-10-18.

Three text-only tasks: Clearly helped.

At least one task improved, with no task showing a clear drop.

Read test record

Why this result?

The skill clearly helped: 0.939 with it and 0.785 without, on 3 test tasks.

runtime, template: higher scores with the skill. Compare task scores

Task score bands: runtime (separated-up): with skill 0.816667 plus or minus 0.028868; without skill 0.733333 plus or minus 0.028868; template (separated-up): with skill 1 plus or minus 0; without skill 0.6375 plus or minus 0.075.

A band is the average score plus or minus the recorded spread. These task bands, not the overall averages, determine the result.

0.939 with the skill and 0.785 without; on at least one of the 3 test tasks, the two ranges of scores (the average plus or minus one spread) did not overlap, and the gap was at least 0.05.

Test details and sources
How this result was decided

The reader applies the task rule, with a separated-down task taking precedence. Overall means do not determine the verdict. Bands show the mean plus or minus the recorded spread; point bands can reflect score quantization.

  • timeline: underpowered. With skill 1 plus or minus 0; without skill 0.983333 plus or minus 0.028868.
  • runtime: separated-up. With skill 0.816667 plus or minus 0.028868; without skill 0.733333 plus or minus 0.028868.
  • template: separated-up. With skill 1 plus or minus 0; without skill 0.6375 plus or minus 0.075.

Three text-only tasks. Driftproof wrote the suite from the pinned skill description and README. These are not author-supplied tests. External tools, generated media and deployed services were not tested.

The eval account's configuration was read and found clean before and after each run, not during it.

Earlier attempts
Receipt metadata

Attempted generations: 19. Measured generations: 19. Lost draws: 0. Judge samples: 95.

Model
claude-opus-5-5
Judge
claude-haiku-5-5
Repository
heygen-com/hyperframes
Skill path
skills/hyperframes-animation/SKILL.md
Pinned commit
c4440dfb200def5e0c0afee938778f05b5985039
Harness
claude-code 2.1.287
Receipt hash
1c9ada1036b3c143c278438e008ac56df967a7132d863649e386e8d3c4664741
Plan hash
af83e8024b571620361e0e1ee1e371c21589e6788f25bbe53542fd11f941da53

Driftproof measured

Answering model: Sonnet 5.5. Judge: Haiku 5.5. Date: 2026-10-18.

Three text-only tasks: Clearly helped.

At least one task improved, with no task showing a clear drop.

Read test record

Why this result?

The skill clearly helped: 0.880 with it and 0.506 without, on 3 test tasks.

timeline, runtime, template: higher scores with the skill. Compare task scores

Task score bands: timeline (separated-up): with skill 1 plus or minus 0; without skill 0.75 plus or minus 0.05; runtime (separated-up): with skill 0.64 plus or minus 0.065192; without skill 0.2 plus or minus 0.05; template (separated-up): with skill 1 plus or minus 0; without skill 0.566667 plus or minus 0.028868.

A band is the average score plus or minus the recorded spread. These task bands, not the overall averages, determine the result.

0.880 with the skill and 0.506 without; on at least one of the 3 test tasks, the two ranges of scores (the average plus or minus one spread) did not overlap, and the gap was at least 0.05.

Test details and sources
How this result was decided

The reader applies the task rule, with a separated-down task taking precedence. Overall means do not determine the verdict. Bands show the mean plus or minus the recorded spread; point bands can reflect score quantization.

  • timeline: separated-up. With skill 1 plus or minus 0; without skill 0.75 plus or minus 0.05.
  • runtime: separated-up. With skill 0.64 plus or minus 0.065192; without skill 0.2 plus or minus 0.05.
  • template: separated-up. With skill 1 plus or minus 0; without skill 0.566667 plus or minus 0.028868.

Three text-only tasks. Driftproof wrote the suite from the pinned skill description and README. These are not author-supplied tests. External tools, generated media and deployed services were not tested.

The eval account's configuration was read and found clean before and after each run, not during it.

Earlier attempts
Receipt metadata

Attempted generations: 20. Measured generations: 20. Lost draws: 0. Judge samples: 100.

Model
claude-sonnet-5-5
Judge
claude-haiku-5-5
Repository
heygen-com/hyperframes
Skill path
skills/hyperframes-animation/SKILL.md
Pinned commit
c4440dfb200def5e0c0afee938778f05b5985039
Harness
claude-code 2.1.287
Receipt hash
b9f499c15c4f83c9a4e1171e88681271c6d6d2cc8637bac97659c5c05a6ab0ce
Plan hash
af83e8024b571620361e0e1ee1e371c21589e6788f25bbe53542fd11f941da53

How we test a skill

A skill gives an AI extra instructions. We ask: do those instructions improve its written answers?

  1. The task Same question. Same AI.

    Driftproof writes tasks from the skill description.

    Give the AI a task
  2. The comparison Change the instructions
    With the skill Written answer
    Without the skill Written answer

    Repeat both ways to see how much answers vary.

  3. The result Judge each task
    Haiku 5.5 scores the answers

    A clear drop on any task takes priority. Otherwise, a better task can mean the skill helped. When answers vary too much, we cannot settle the result.

These tests cover written answers, not installation, tool use or how useful a skill is in general.

Receipts by Driftproof (driftproofhq/driftproof), licensed Apache-2.0.

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Built on from committed receipts.