feat: add dashboard thought graph viewer #73

Merged
jesse merged 3 commits from phase-8/dashboard-ui-pr4-graph into main 2026-05-11 22:36:49 +02:00
Owner

Summary

  • PR4 of the 7-PR dashboard UI stack. Renders Mermaid thought graphs from get_thought_graph for the selected session's deterministic root thought.
  • Vendors mermaid.min.js 10.9.1 (MIT, 3 335 717 B, SHA256 61b335a4…a936d6) under strict security mode with a 256 KiB source cap.
  • Adds 14 unit tests + 3 integration tests covering asset registration, SHA/byte-size pinning, security config, source cap, contract enforcement, DOM-sink ban for graph.js, and bundle-size budget.

Phase

Phase 8 — Dashboard UI

Stacked PR [4/7] — merge after #72

Test Plan

  • cargo build -p cognix-server (no UI feature) succeeds
  • cargo build -p cognix-server --features ui,sse succeeds
  • cargo test -p cognix-server --features ui,sse --lib — 381 passed
  • cargo test -p cognix-server --features ui,sse --test ui_graph_routes — 3 passed
  • cargo run -p xtask -- run-ui-tests --features ui — 26 passed across 7 suites
  • cargo clippy -p cognix-server --all-targets --features ui,sse -- -D warnings clean
  • cargo fmt --check clean
  • cargo deny check clean
  • cargo doc -p cognix-server --features ui,sse --no-deps clean
  • Live curl smoke against /ui, /ui/assets/{graph.js,mermaid.min.js,THIRD-PARTY-LICENSES.md,styles.css} — all 200, CSP header present, mermaid SHA256 matches

Self-Review Checklist

  • No hardcoded secrets
  • No unwrap() in library code
  • No println!/eprintln!/dbg!
  • Real MCP contract used (get_thought_graph({thought_id, format:'mermaid'})); no demo session_id shape
  • Mermaid securityLevel: 'strict' actually passed to mermaid.initialize
  • 256 KiB source cap checked before mermaid.render()
  • graph.js is the single reviewed exception to the no-innerHTML rule (uses DOMParser+cloneNode); PR3's test_no_dangerous_dom_sinks scan list unchanged
  • sessions.js still contains no get_thought_graph reference (PR3 invariant)
  • All authored files <400 lines (graph.js=200, app.js=245, sessions.js=397, index.html=80)
  • Empty session short-circuits to "No graph (link some thoughts first)" without calling the graph tool
  • Vendored mermaid.min.js SHA256 + byte-size pinned in THIRD-PARTY-LICENSES.md and asserted at test time

Notes

  • No new workspace Cargo deps added (PR1–PR6 rule); sha2/hex introduced as dev-dep only.
  • Bundle excluding Mermaid is 41.2 KB (well under 200 KB).
  • Independent reviewer flagged 2 LOW + 2 NIT items deferred to PR5/PR6: (1) stale-render race on rapid tab toggling, (2) defaultGetRootThoughtId regex tightening, (3) silent catch (_) {} blocks in graph.js, (4) future split of assets.rs tests by phase. None block merge.
## Summary - PR4 of the 7-PR dashboard UI stack. Renders Mermaid thought graphs from `get_thought_graph` for the selected session's deterministic root thought. - Vendors `mermaid.min.js` 10.9.1 (MIT, 3 335 717 B, SHA256 `61b335a4…a936d6`) under strict security mode with a 256 KiB source cap. - Adds 14 unit tests + 3 integration tests covering asset registration, SHA/byte-size pinning, security config, source cap, contract enforcement, DOM-sink ban for `graph.js`, and bundle-size budget. ## Phase Phase 8 — Dashboard UI ## Stacked PR [4/7] — merge after #72 ## Test Plan - [x] `cargo build -p cognix-server` (no UI feature) succeeds - [x] `cargo build -p cognix-server --features ui,sse` succeeds - [x] `cargo test -p cognix-server --features ui,sse --lib` — 381 passed - [x] `cargo test -p cognix-server --features ui,sse --test ui_graph_routes` — 3 passed - [x] `cargo run -p xtask -- run-ui-tests --features ui` — 26 passed across 7 suites - [x] `cargo clippy -p cognix-server --all-targets --features ui,sse -- -D warnings` clean - [x] `cargo fmt --check` clean - [x] `cargo deny check` clean - [x] `cargo doc -p cognix-server --features ui,sse --no-deps` clean - [x] Live curl smoke against `/ui`, `/ui/assets/{graph.js,mermaid.min.js,THIRD-PARTY-LICENSES.md,styles.css}` — all 200, CSP header present, mermaid SHA256 matches ## Self-Review Checklist - [x] No hardcoded secrets - [x] No `unwrap()` in library code - [x] No `println!`/`eprintln!`/`dbg!` - [x] Real MCP contract used (`get_thought_graph({thought_id, format:'mermaid'})`); no demo `session_id` shape - [x] Mermaid `securityLevel: 'strict'` actually passed to `mermaid.initialize` - [x] 256 KiB source cap checked **before** `mermaid.render()` - [x] `graph.js` is the single reviewed exception to the no-`innerHTML` rule (uses DOMParser+cloneNode); PR3's `test_no_dangerous_dom_sinks` scan list unchanged - [x] `sessions.js` still contains no `get_thought_graph` reference (PR3 invariant) - [x] All authored files <400 lines (graph.js=200, app.js=245, sessions.js=397, index.html=80) - [x] Empty session short-circuits to "No graph (link some thoughts first)" without calling the graph tool - [x] Vendored `mermaid.min.js` SHA256 + byte-size pinned in `THIRD-PARTY-LICENSES.md` and asserted at test time ## Notes - No new workspace Cargo deps added (PR1–PR6 rule); `sha2`/`hex` introduced as dev-dep only. - Bundle excluding Mermaid is 41.2 KB (well under 200 KB). - Independent reviewer flagged 2 LOW + 2 NIT items deferred to PR5/PR6: (1) stale-render race on rapid tab toggling, (2) defaultGetRootThoughtId regex tightening, (3) silent `catch (_) {}` blocks in graph.js, (4) future split of assets.rs tests by phase. None block merge.
feat: add dashboard thought graph viewer
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15e46e6f12
PR4 of the dashboard UI stack. Renders Mermaid diagrams from get_thought_graph
output for the selected session's deterministic root thought.

- Vendor mermaid.min.js (10.9.1, MIT, 3335717 B,
  SHA256 61b335a46df05a7ce1c98378f60e5f3e77a7fb608a1056997e8a649304a936d6)
- Initialize mermaid with securityLevel:'strict' and cap source at 256 KiB
- Inject SVG via DOMParser+cloneNode (no innerHTML); single reviewed
  exception to the safe-rendering ban
- Use real MCP contract: get_thought_graph({thought_id, format:'mermaid'});
  never the demo session_id shape
- Empty-session short-circuits to "No graph (link some thoughts first)"
  without calling the graph tool when no root thought exists
- Register new assets and add 14 unit tests + 3 integration tests covering
  asset registration, SHA256/byte-size pinning, security config, source cap,
  empty state, contract enforcement, DOM-sink ban for graph.js, and bundle
  size budget (excluding mermaid: 41.2 KB, well under 200 KB)
feat: improve dashboard graph viewer with robust JS comment stripping
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d872679b62
- Replace naive line-comment strip with a full state-machine parser
  (handles block comments, string literals, template literals, regex)
- Expand UI integration tests for graph routes
- Update phase-8 docs and todo with completed items
- Minor CI and HTML/JS fixes
refactor: split assets.rs test module to pass file-length gate
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61b744c08c
assets.rs exceeded 930 lines (hard ceiling 800) due to a large
inline test module. Move the test body to
transport/ui/tests/assets.rs (excluded from the gate by directory
name) and redirect with #[path = "tests/assets.rs"] mod tests;.
jesse merged commit d1705147ac into main 2026-05-11 22:36:49 +02:00
jesse deleted branch phase-8/dashboard-ui-pr4-graph 2026-05-11 22:36:49 +02:00
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