# Changelog

All notable changes to BEHAVE packages are documented here.
Format follows [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
Versions follow [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

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## [behave-text 0.1.3] — 2026-05-23

### behave-text

#### Added
- `stylometric.pos_ngram_signature` — 64-bit SimHash over POS n-gram (default bigram)
  frequency vector. Captures syntactic skeleton independent of vocabulary. Tagger-dependent;
  source label must declare tagger + model + n. Calibration note: noisy on chat-domain text,
  weight low until validated.
- `lexical.dialect_region` — BCP-47 language-region free_string (`es-CL`, `es-AR`, `es-MX`,
  `es-ES`, `en-US`, etc.) for the actor's dominant regional variety, detected from lexical
  marker density. Emit `unknown` below confidence threshold. Designed for EYENET integration
  with INGEOTEC `regional-spanish-models` vocabulary tables (MIT).
- `lexical.evaluative_morphology_density` — numeric [0,1] rate of evaluative morpheme tokens
  (diminutives, augmentatives, pejoratives, intensives) per total tokens. Stable per-author
  trait baked into language acquisition; strong Spain/LatAm regional discriminator.
- `lexical.optional_grammar_signature` — 64-bit SimHash over author preference probabilities
  at optional-grammar choice points (for Spanish: compound vs simple past, subjunctive usage,
  leísmo/laísmo/loísmo, relative pronoun choice). Choice-point set is extractor-defined and
  declared in source label.

---

## [behave-text 0.1.2] — 2026-05-23

### behave-text

#### Added
- `meta.*` layer — 8 new corpus-snapshot primitives: `total_messages`, `corpus_span_days`,
  `msg_per_day`, `active_days`, `activity_density`, `first_seen_ts`, `last_seen_ts`,
  `fingerprint_confidence`. Fills the gap between actors with identical message counts but
  radically different presence shapes (bursty single-session vs long-tail lurker).

#### Fixed
- Stale `scratchpad.md` references in `primitives.py` docstring, `tests/test_primitives.py`
  docstring, and `attribution-recipes.md` — `README.md` is now the authority.

---

## [0.1.0] — 2026-05-17

Initial public release of all three packages.

### behave-core

- Shared observation envelope and schema contract (`BehaveObservation`)
- Pydantic v2 base models for domain-agnostic behavioral records

### behave-shell

- Shell-session behavioral observation registry
- Primitive catalog covering command execution, session lifecycle, environment, and navigation events
- Layered on `behave-core`

### behave-text

- Text/messaging-domain behavioral observation registry
- Primitive catalog covering message composition, conversation, and metadata events
- Layered on `behave-core`