Installs into .claude/skills of the current project.
Are you the author of Agreement Line Fit?
Add the live security badge to your README. It updates with every re-scan.
[](https://www.skillsdirectory.com/skills/vectorspacelab-agreement-line-fit)
---
name: agreement_line_fit
description: Fit the probit-space ID-to-OOD agreement line and report agreement-on-the-line diagnostics without OOD labels.
---
# Agreement Line Fit
Use this skill when pairwise agreement statistics are available and you need to check whether agreement-on-the-line plausibly holds.
## Inputs
- JSON statistics from `agreement_statistics`.
- Optional R² threshold.
## Outputs
- Slope, intercept, R², residual summaries, and `on_line` decision.
## Workflow
1. Align pairwise ID/OOD agreement probit values.
2. Fit ordinary least squares in probit space.
3. Compute R² and residual summaries.
4. Treat low R² as a reliability warning for downstream OOD accuracy estimates.
## Validation
Run `python tests/test_agreement_line_fit.py` from this skill directory.
## Limitations
The line diagnostic is unlabeled; it cannot prove true OOD accuracy without a separate evaluation harness.
