Module viewer 

Web viewer, architecture diagram, and snap-bitmap recipe (SPEC-SCC-VIEWER): human-readable HTML over the live store, a deterministic Mermaid/SVG diagram from the L1 architecture layer, and the repo-map text plus pinned Pillow recipe behind scc snap.

The viewer reuses httpd.rs routing and the loopback gate; the diagram reuses the export_ccg L1 filter; the snap recipe carries the same map text the CLI prints. One IR, three surfaces.

Structs

DiagramEdge

Diagram model + Mermaid/SVG rendering live in the engine (scc_engine::diagram) so every transport renders the same bytes. This module re-exports the engine implementation; the CLI only parses args and prints. One architectural relationship between diagram nodes.

DiagramModel

Diagram model + Mermaid/SVG rendering live in the engine (scc_engine::diagram) so every transport renders the same bytes. This module re-exports the engine implementation; the CLI only parses args and prints. L1 architecture nodes plus capped edges, sorted for byte-determinism.

DiagramNode

Diagram model + Mermaid/SVG rendering live in the engine (scc_engine::diagram) so every transport renders the same bytes. This module re-exports the engine implementation; the CLI only parses args and prints. One architecture-layer entity in the diagram.

Constants

MAX_DIAGRAM_NODES

MAX_EDGES_PER_NODE

Functions

build_diagram_model

Build the diagram model from the live store. Same L1 filter as export_ccg; edges limited to architectural predicates between known nodes, capped per node after sorting so output is deterministic.

component_detail_page

Component detail page; None when the id is unknown.

components_page

Component list page.

diagram_page

Diagram page: inline SVG plus copyable Mermaid source.

flow_detail_page

Flow detail page; None when the id is unknown.

flows_page

Flow list page.

is_viewer_path

Viewer route predicate: exact pages plus /components/<id>, /flows/<id>, and /search with query string.

map_text

The repo-map text behind scc snap: overview line plus component lines plus surface symbol names. Same text the CLI prints; the PNG recipe renders exactly these bytes.

overview_page

Overview page from live store reads.

page

Minimal page shell: no framework, no build step, loopback only.

render_mermaid

Mermaid flowchart: gitdiagram-shaped output, SCC-derived content.

render_svg

Dependency-free SVG: naive grid layout (spec-acknowledged limit), boxes plus lines plus labels, no JS.

search_page

Lexical search page reusing the store FTS path.

serve_viewer

Serve one viewer route: (status, HTML body). Query strings honored on /search?q=; unknown ids yield 404.

snap_recipe

Pinned Pillow recipe rendering map_text bytes to PNG. Grid: 8px cols and 16px rows on a 1568px canvas (196 chars per row), height padded to a multiple of 28px (vision patch alignment).

token_estimate

Honesty line: text tokens (chars divided by 4) versus PNG image tokens (Anthropic pixel formula at the snapped canvas size).