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notarius/docs/config.md

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# Configuration
This is the canonical reference for implemented Notarius configuration.
Notarius reads YAML config files with `version: 1`. File config is applied over
built-in defaults, then environment overrides are applied.
## Discovery
Commands that accept `--config` load configuration in this order:
1. the `--config` path, when provided;
2. `NOTARIUS_CONFIG`, when set to a non-empty path;
3. `/usr/local/etc/notarius/config.yml`.
If none is available, the command fails with a config file not found error.
## Minimal Example
```yaml
version: 1
llm_profiles:
default:
provider: openai-compatible
base_url: http://127.0.0.1:8080/v1
model: your-model
pipelines:
dnd-session:
input: seriatim
chunk:
module: generic
options:
max_units: 50
artifacts:
spells:
extract: dnd/spells
```
The maintained fixture is [examples/dnd-spells.config.yml](../examples/dnd-spells.config.yml).
## Top-Level Fields
- `version`: required. The only supported value is `1`.
- `llm_profiles`: optional map of LLM profile IDs to profile settings.
- `pipelines`: optional map of pipeline IDs to pipeline definitions.
- `concurrency`: optional global concurrency settings.
- `diagnostics`: optional diagnostics settings.
Unknown YAML fields are rejected.
## Defaults
Built-in defaults:
```yaml
llm_profiles:
default:
provider: openai-compatible
timeout: 600
max_retries: 3
max_concurrency: 1
concurrency:
total_llm: 1
diagnostics:
work_dir: /tmp/notarius
retention: auto
```
No pipelines are built in. A run requires a configured pipeline.
## LLM Profiles
Each `llm_profiles` entry may contain:
- `provider`: optional provider key. Empty means `openai-compatible`; any other
non-empty value must be `openai-compatible`.
- `base_url`: provider base URL. Required for actual LLM calls.
- `model`: provider model name. Required for actual LLM calls.
- `api_key_env`: environment variable name to read for the API key.
- `timeout`: request timeout as whole seconds or a Go-style duration string such
as `10m`.
- `max_retries`: retry count for provider calls. Must be zero or greater.
- `max_concurrency`: per-profile LLM concurrency. Must be zero or greater; when
zero, Notarius uses `concurrency.total_llm`.
Raw API keys are not accepted as file config fields. Use `api_key_env` or an
environment override.
## Environment Overrides
These environment variables are applied after the config file:
- `NOTARIUS_CONFIG`: config discovery path.
- `NOTARIUS_LLM_DEFAULT_API_KEY`: API key for the `default` LLM profile.
- `NOTARIUS_LLM_DEFAULT_BASE_URL`: base URL for the `default` LLM profile.
- `NOTARIUS_LLM_DEFAULT_MODEL`: model for the `default` LLM profile.
- `NOTARIUS_LLM_DEFAULT_TIMEOUT_SECONDS`: integer timeout seconds for the
`default` LLM profile.
- `NOTARIUS_LLM_DEFAULT_MAX_RETRIES`: integer retry count for the `default` LLM
profile.
- `NOTARIUS_LLM_DEFAULT_MAX_CONCURRENCY`: integer max concurrency for the
`default` LLM profile.
- `NOTARIUS_TOTAL_LLM_CONCURRENCY`: integer global LLM concurrency.
- `NOTARIUS_WORK_DIR`: diagnostics work directory.
- `NOTARIUS_DIAGNOSTICS_RETENTION`: diagnostics retention mode.
Integer environment values must parse as base-10 integers.
## Pipelines
A pipeline defines the fixed Notarius workflow:
```text
input -> chunk -> extract -> merge -> normalize -> output
```
Pipeline fields:
- `input`: required module binding.
- `chunk`: optional module binding. Default module is `generic`.
- `artifacts`: required for pipeline resolution. It maps artifact lane IDs to
lane definitions.
- `output`: optional module binding. Default module is `json`.
- `references`: optional map of extractor reference slot names to reference
paths. These bindings are defaults for artifact lanes whose extractor declares
the matching slot.
Artifact lane fields:
- `extract`: required module binding.
- `merge`: optional module binding. Default module is `appendorder`.
- `normalize`: optional module binding. Default module is `noop`.
- `validators`: optional list of module bindings. The production CLI currently
does not register validator modules.
- `references`: optional map of extractor reference slot names to reference
paths. Lane bindings override pipeline-level bindings for the same slot.
`notarius run` and `notarius config validate --pipeline` resolve the pipeline
against the production module catalog and fail fast for unknown or incompatible
module keys.
Reference bindings are validated against extractor-declared slots during
pipeline resolution. Required slots must be bound after config defaults,
lane-level bindings, and run-time `--reference` or `--without-reference`
overrides are applied. Config-relative paths are resolved relative to the
config file; CLI reference paths are resolved relative to the current working
directory. Bound files must be UTF-8 text and are passed only to lane
extractors that declare the slot. Reference content is not written to
diagnostics, logs, errors, or manifests.
## Module Bindings
Every module binding may use shorthand:
```yaml
input: seriatim
```
or object form:
```yaml
chunk:
module: generic
llm_profile: default
options:
max_units: 50
```
Binding fields:
- `module`: module key.
- `llm_profile`: optional LLM profile ID. Empty means `default`.
- `options`: optional module-specific settings.
The `--llm-profile` run flag overrides every effective module binding to use
one configured profile.
## Implemented Production Modules
| Slot | Key | Notes |
| --- | --- | --- |
| input | `seriatim` | Reads Seriatim transcript JSON. |
| chunk | `generic` | Splits source units into ordered chunks. |
| chunk | `dnd/scenes` | Uses an LLM to split transcript source units into D&D scenes. |
| extract | `dnd/spells` | Extracts `dnd.spell_cast` artifacts. |
| merge | `appendorder` | Keeps candidates in append order. |
| normalize | `noop` | Passes merged artifacts through unchanged. |
| output | `json` | Produces JSON output files. |
The `generic` chunker accepts:
- `max_units`: positive integer, default `50`;
- `overlap_units`: non-negative integer, default `0`, and must be less than
`max_units`.
The `dnd/scenes` chunker requires transcript source capabilities, calls the
configured structured LLM provider, and does not accept module options.
## Diagnostics
`diagnostics` fields:
- `work_dir`: directory for per-run diagnostics. Default: `/tmp/notarius`.
- `retention`: `auto`, `always`, or `never`. Empty uses `auto`.
`auto` retains diagnostics for failed runs and successful runs with warnings.
`always` retains diagnostics for every run. `never` removes diagnostics for
successful runs without regard to warnings; failed runs are retained.
The `--diagnostics-dir` run flag overrides `diagnostics.work_dir` for that
invocation.
## Validation
Configuration validation checks:
- supported config version and known YAML fields;
- non-empty, non-duplicated IDs after trimming;
- supported LLM provider and non-negative profile limits;
- positive global LLM concurrency;
- supported diagnostics retention and non-empty work directory;
- module binding LLM profiles refer to configured profiles.
Pipeline resolution additionally checks:
- the pipeline ID exists;
- at least one artifact lane is declared and selected;
- selected lanes exist when `--only` is used;
- required module keys are present;
- module keys are registered for the expected slot;
- module capability requirements are satisfied.
- bound reference slots are declared by selected lane extractors;
- required reference slots are bound for selected lanes.