Inspect representationsResearch prototypeJacobian bridgeHow does a small directional change affect a readout?Source not publicly releasedRead instrument details ↗
- Method
- Directional finite differences at selected model layers.
- Output
- Derivative/readout estimates and comparison outputs.
- Limit
- A local derivative estimate does not establish a general causal interpretation. Extraction and step-size contracts matter.
- Maturity
- Research prototype
- Access
- Source not publicly released
- License
- No public release license established in this catalog.
- Prerequisites
- Checkpoint/residual access, layer/tap definition, prompt pool and finite-difference step contract.
- Inputs
- Prompts, selected residual directions/layers and step sizes.
- Compatibility
- Internal-access prototype; estimator and normalization must match the source.
- Replication boundary
- See the evidence record; executable source, packaging checks and retained summaries are not independent scientific replication.
- Reproducibility
- Record the exact artifact version, input identity, extraction/settings, split/control definitions, seed and output receipt. Distinguish source inspection, stored-summary replay and independent experiment replication.
- Authorization boundary
- Use requires separate authorization for the selected inputs, compute and actions. This catalog does not authorize experiments, model/provider calls, training, publication or private-data transfer.
- Costs
- Local CPU/time for source inspection or stored-record review. Model-access methods may require substantial compute; endpoint/provider charges are configuration-specific. No cost estimate or free execution is promised.
Usage example and scope
No public runnable command verified for this entry
Example source or method →tool-01 · Jacobian bridge · instrument:tool-01