Struct ContextAssembler 

pub struct ContextAssembler { /* private fields */ }

The main assembly engine.

Implementations

impl ContextAssembler

pub fn new() -> Self

pub fn with_renderer(self, renderer: Box<dyn GrainRenderer>) -> Self

Register a custom renderer (replaces default for that grain type).

pub fn with_decider(self, decider: Arc<dyn DecisionBackend>) -> Self

Install a decision backend (docs/decision-model-proposal.md rows A2/A3). With one installed and a query text on the policy (or the hints), Self::format_with_hints asks it:

• A3 — one choice on the query (timeline / current_state / general) in place of the temporal and recency keyword lists. The hint flags (has_temporal_expr, has_time_range) still win.
• A2 — per candidate (≥ 2 hits), relevance (score, 4 levels) and whether a summary would lose a needed detail (noul). The relevance replaces the recall score’s input to the priority; for a CALIBRATED backend a candidate below drop_below is omitted and one at or above full_above prefers Full (the 95% budget line stays final). Uncalibrated: reorder only.

Any backend error or malformed answer falls back to today’s rule for that question. FormatPolicy::decide tunes it; None there means DecidePolicy::default. The result’s decision field says who judged. Host config — the backend is never persisted anywhere.

pub fn format( &self, hits: &[SearchHit], policy: &FormatPolicy, ) -> FormattedContext

Format a set of search hits into LLM-ready context.

Equivalent to format_with_hints(hits, policy, &RenderingHints::default()) — no structured rendering modes are activated.

pub fn format_with_hints( &self, hits: &[SearchHit], policy: &FormatPolicy, hints: &RenderingHints, ) -> FormattedContext

RF-4: Format with structured rendering hints.

Selects one of three intent-aware rendering modes based on the hints, checked in priority order:

1. Aggregation mode (entity_count present)
2. Timeline mode (temporal intent detected — chronological with deltas)
3. Census mode (primary + census section split)
4. Relevance highlighting (> 10 grains)
5. Default rendering (unchanged)

JSON output bypasses all modes and renders normally.

Trait Implementations

impl Default for ContextAssembler

fn default() -> Self

Returns the “default value” for a type.