# Data schema

`index/test.jsonl` is UTF-8 JSON Lines with one object per pair. The Hugging Face config explicitly selects this file; other JSON files are executable benchmark assets, not independent dataset rows. No custom loading script or remote code execution is needed to read the index.

| Field | Type | Meaning |
| --- | --- | --- |
| `pair_id` | string | Release ID `hera_001` through `hera_060` |
| `number` | integer | Existing controller ID, 1 through 60 |
| `action_type` | string | Frozen action-type annotation |
| `environment` | string | Domain environment namespace |
| `instruction` | string | Original shared user request |
| `system_prompt` | string | Original shared system prompt |
| `brief_path` | string | Supporting brief and task-specific report schema |
| `pair_metadata_path` | string | Controller routing record |
| `act_initial_state_paths` | list of 2 strings | Domain state, then `task_documents` state |
| `abstain_initial_state_paths` | list of 2 strings | Domain state, then `task_documents` state |

Every path resolves within the repository. The two state lists point to distinct variant directories. The document states match across a pair; the domain states differ. The environment field identifies the domain implementation, while both sides additionally use `task_documents`.

`tasks.json` retains its original array of `{number, instruction, system_prompt}` records. `private/pairs/NNN.json` retains `{number, pair, env_name, brief_id, kind, slot, context, action_type}`. `kind` selects the native or bundle runtime; `slot` is null for native tasks and a bundle name otherwise. `context` is task-specific controller metadata. `pair` is the neutral directory ID `hera_NNN`, matching `pair_id`; states live under `data/tasks/hera_NNN/{act,abstain}/initial_states/`. These internal keys are not reinterpreted as model inputs.

Initial states and reports are deliberately heterogeneous. Each public brief has its own `report_schema`, validated as JSON Schema Draft 2020-12. MCP tool definitions are generated by the corresponding environment and retain their original names, descriptions, input schemas, and output schemas. Public tool names are qualified as `environment.tool`.

The index duplicates the original prompts only for access through `datasets.load_dataset`. The executable files remain authoritative for transitions and scoring. `checksums.sha256` binds their exact bytes. Loading an index row does not automatically load referenced files; use `snapshot_download` to obtain the full executable package.