@shapeshift-labs/frontier-trace

v0.1.0

Published

20 days ago

Serializable traces, spans, links, and timeline graphs for Frontier apps.

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shapeshift-labs

frontier trace tracing spans timeline registry observability

@shapeshift-labs/frontier-trace

Serializable trace primitives for Frontier apps.

frontier-trace is not an OpenTelemetry SDK, logger, browser recorder, or Playwright adapter. It is a small data package for representing spans, events, causal links, W3C trace context, timeline exports, resource/path impact, registry graph output, JSONL exchange, redaction, and proof hashes in a form that AI tools and replay harnesses can read without loading app runtimes.

import {
  createTrace,
  createTraceSpan,
  createTraceEvent,
  createTraceFeatureMap,
  traceImpact,
  analyzeTrace,
  encodeTraceJsonl
} from '@shapeshift-labs/frontier-trace';

const trace = createTrace({
  spans: [
    createTraceSpan({
      id: 'feature.todos.load',
      name: 'Load todos',
      kind: 'effect',
      startTime: 10,
      durationMs: 18,
      feature: 'todos',
      package: '@app/todos',
      resource: 'fetch:/api/todos',
      reads: ['auth.session'],
      writes: ['entities.todos'],
      source: { file: 'src/todos/load.ts', line: 12, symbol: 'loadTodos' }
    })
  ],
  events: [
    createTraceEvent({
      name: 'dom.updated',
      spanId: 'feature.todos.load',
      time: 31,
      resource: 'dom:#todo-list',
      paths: ['entities.todos']
    })
  ]
});

const impact = traceImpact(trace, { resources: ['fetch:/api/todos'] });
const analysis = analyzeTrace(trace);
const featureMap = createTraceFeatureMap(trace);
const jsonl = encodeTraceJsonl(trace, { redactKeys: ['authorization'] });

Ideas

Trace identity is W3C-compatible: traceparent parse/format helpers preserve traceId, spanId, flags, sampled state, and optional tracestate.
Spans and events stay immutable plain data. They can describe DOM, routes, effects, triggers, migrations, tests, workers, storage, game scenes, or package code without importing those packages.
Every span/event can carry Frontier-friendly resources, reads, writes, feature, package, source, and tags, so "what did this feature touch?" works across an entire app.
createTraceFeatureMap(...) groups feature/resource/path/package/file/tag nodes with span ids, event ids, link ids, touched resources, paths, files, timings, and error counts for AI feature review.
Links model non-tree causality: parent/child, follows-from, cause, block, resource, state, and custom relationships.
createTraceRegistryGraph(...) turns traces into Frontier registry entries and records, so inspect/replay/tooling can merge trace evidence with package manifests.
JSONL, redaction, proof hashes, and Chrome trace export make it cheap to move traces between Playwright, CI, local replays, and AI inspection tools.

Boundary

This package depends only on @shapeshift-labs/frontier. Runtime integrations should be structural adapters owned by packages such as frontier-logging, frontier-effects, frontier-triggers, frontier-route, frontier-dom, frontier-playwright, and frontier-inspect.

Related Packages

The published Frontier package family is generated from one shared package catalog so READMEs stay in sync across packages:

@shapeshift-labs/frontier: Core JSON diff/apply, compact patch tuples, JSON Pointer, equality, clone, validation, Unicode helpers, and tiny dependency-free runtime budget/scheduler primitives.
@shapeshift-labs/frontier-query: Shared query-key, selector path, condition, entity identity, and table-shape primitives.
@shapeshift-labs/frontier-codec: Patch serialization, binary frames, canonical JSON, and patch-history codecs.
@shapeshift-labs/frontier-engine: Stateful planned diff engine, adaptive profiles, schema plans, and engine-level history helpers.
@shapeshift-labs/frontier-state: Patch-routed app-state subscriptions, owned commits, maintained views, and path mapping.
@shapeshift-labs/frontier-dataflow: Serializable incremental dataflow and materialized-view graphs for Frontier apps, including selectors, dependency DAGs, filters, joins, aggregations, stale paths, recompute budgets, output patches, provenance records, and proof of why derived views changed.
@shapeshift-labs/frontier-state-cache: Normalized query-result cache with entity/query watchers, persistence, change logs, optimistic layers, scheduled persistence, and mutation bridge.
@shapeshift-labs/frontier-state-cache-idb: IndexedDB persistence adapter for Frontier state-cache snapshots and durable change logs.
@shapeshift-labs/frontier-state-cache-file: Structured file persistence adapter for Frontier state-cache snapshots and change logs.
@shapeshift-labs/frontier-state-cache-sql: SQL persistence adapter for Frontier state-cache snapshots and change logs.
@shapeshift-labs/frontier-schema: JSON Schema validation, Frontier profile generation, CloudEvent envelopes, and query/table schema helpers.
@shapeshift-labs/frontier-migrations: Boundary-first data migrations, import normalization, plugin/API version mapping, versioned envelopes, graph diagnostics, patch path rewrites, dry-run reports, and current-shape rehydration.
@shapeshift-labs/frontier-event-log: Bounded event logs, replay cursors, consumer acknowledgements, keyed compaction, checkpoints, and Frontier patch event records.
@shapeshift-labs/frontier-inspect: Cross-package inspection/evidence bundles, registry graph snapshots, feature/resource impact reports, timeline/event normalization, redaction, JSONL import/export, and AI-readable app feature maps.
@shapeshift-labs/frontier-scheduler: Deterministic work scheduling, lanes, cancellation, backpressure, frame policies, replay snapshots, and work graphs.
@shapeshift-labs/frontier-logging: Opt-in structured logging, browser telemetry, scheduled sinks, file sinks, exporters, benchmark traces, and Frontier patch/update summaries.
@shapeshift-labs/frontier-mutation: Explicit mutation and selector plans compiled to Frontier patches or CRDT operations.
@shapeshift-labs/frontier-effects: Serializable effect descriptors and resource graphs for Frontier apps, including fetch, storage, timers, navigation, workers, clipboard, broadcast, WebSocket, stream, policy metadata, runtime records, redaction, JSONL, proof helpers, and registry graph output.
@shapeshift-labs/frontier-policy: Serializable policy and capability decisions for Frontier apps, effects, views, sync, routes, traces, and AI tools.
@shapeshift-labs/frontier-tools: Serializable app action/tool manifests for AI-operable Frontier apps, including availability, validation, dry-run plans, patch previews, effect/tool constraints, execution records, rollback links, and registry graph output.
@shapeshift-labs/frontier-sandbox: Runtime-agnostic sandbox contracts for Frontier patch-producing actions, including manifests, declared reads/writes/capabilities, host-validated patch/effect/event/log results, dynamic source modules, source event replay, and structural runtime adapters.
@shapeshift-labs/frontier-sandbox-quickjs: QuickJS/WebAssembly runtime adapter for Frontier sandbox actions, including invocation/runtime isolation modes, deadline and memory limits, dynamic source execution, and patch/effect result normalization.
@shapeshift-labs/frontier-workflow: Serializable durable workflow/process manifests for Frontier apps, including steps, waits, approvals, timers, retries, expected patches, compensation, records, timelines, and registry graph output.
@shapeshift-labs/frontier-worker: Serializable worker and edge task descriptors for Frontier apps, including queues, idempotency keys, retry and timeout policy, declared reads/writes/effects, snapshots, patch outputs, produced assets, execution records, logs, trace links, proof hashes, dedupe indexes, and registry graph output.
@shapeshift-labs/frontier-assets: Serializable asset and content provenance graphs for Frontier apps, including source files, generated variants, thumbnails, LOD chunks, shader/material dependencies, transforms, hashes, owners, runtime consumers, review plans, registry graph output, and impact queries.
@shapeshift-labs/frontier-blueprint: Serializable Blueprint/Prefab flyweight templates for Frontier apps, including parameterized instantiation, deterministic ID/path remapping, compact overrides, variants, effective-state materialization, scene/state patch emission, dependency metadata, and registry graph output.
@shapeshift-labs/frontier-triggers: Capability-gated event trigger registry, scoped event envelopes, listener/reaction rules, structured rejection, deterministic event-to-action scheduling, replay/provenance records, and registry graph output.
@shapeshift-labs/frontier-virtual: DOM-neutral virtualization, layout providers, range materialization, grids, spatial/frustum indexes, patch invalidation, camera anchors, and serializable layout state.
@shapeshift-labs/frontier-scene: Patch-native 2D/3D scene graph, transform propagation, bounds queries, virtual/culling adapters, spatial invalidation, and camera/frustum materialization.
@shapeshift-labs/frontier-pathfinding: Patch-native grid pathfinding, typed-array A*/Dijkstra search, flow fields, connected components, line-of-sight smoothing, dirty-cell invalidation, and scheduler-friendly path jobs.
@shapeshift-labs/frontier-lod: Patch-native level-of-detail and significance selection for rendering and computation workloads, compact typed hot paths, multi-observer selection, budget degradation, materialization frames, and scheduler work plans.
@shapeshift-labs/frontier-route: DOM-neutral app/game route resources, route and scene manifests, match/resolve/transition planning, dependency metadata, sessions, registry graph output, and impact queries.
@shapeshift-labs/frontier-manifest: Build/static feature manifests for owners, routes, actions, states, migrations, tests, source files, assets, resources, tasks, dependency metadata, registry graph output, feature maps, JSONL export, and impact queries.
@shapeshift-labs/frontier-view: Renderer-neutral view manifests, type defaults, validation frames, action bindings, visual channels, virtual/LOD hints, and data-to-representation mapping for Frontier apps.
@shapeshift-labs/frontier-canvas: Renderer-neutral infinite canvas surfaces for Frontier apps, including camera and viewport math, pan/zoom plans, grid materialization, snapping, hit testing, selection handles, extensible tool dispatch, frame records, registry graph output, and impact/proof helpers.
@shapeshift-labs/frontier-canvas-tools: Renderer-neutral editor tools, state machines, transform handles, permissions, async records, and AI action bridges for Frontier canvas surfaces.
@shapeshift-labs/frontier-dom: Patch-native DOM and host renderer bindings, manifest hydration, JSX runtime/compiler helpers, SSR, devtools, and logging bridges.
@shapeshift-labs/frontier-playwright: Playwright/headless automation probes for Frontier state, DOM, devtools, marks, and timeline queries.
@shapeshift-labs/frontier-test: Serializable test/spec evidence manifests for Frontier apps, including fixtures, commands, expected patches/effects/routes/policies, coverage declarations, run plans, run records, report adapters, replay proofs, fuzzers, benchmarks, registry graph output, and impact queries.
@shapeshift-labs/frontier-history: Serializable temporal explanation and causality records for Frontier apps, including field-change explanations, action/workflow/policy/effect/trace/test provenance, audit windows, undo planning, registry/provenance graph output, JSONL replay bundles, and proof hashes.
@shapeshift-labs/frontier-application: Serializable whole-application graph and impact queries for Frontier apps, including features, owners, packages, routes, views, actions, mutations, state paths, effects, workers, assets, tests, traces, policies, workflows, migrations, benchmarks, registry graph output, feature maps, JSONL bundles, and proof hashes.
@shapeshift-labs/frontier-linter: Serializable Frontier lint rules, diagnostics, fixes, reports, and fast rule execution for package catalogs, registry graphs, application maps, manifests, traces, policies, workflows, workers, assets, tests, benchmarks, and source snippets.
@shapeshift-labs/frontier-crdt: Native CRDT documents, update tooling, awareness, branches, conflict introspection, version frames, and undo.
@shapeshift-labs/frontier-crdt-sync: CRDT sync endpoints, repo/storage/provider contracts, scheduled sync work, document URLs, local networks, model checking, forensics, and text binding contracts.
@shapeshift-labs/frontier-crdt-websocket: WebSocket client/server transports for Frontier CRDT sync providers.
@shapeshift-labs/frontier-react: React external-store hooks and adapters for Frontier state, cache, and CRDT surfaces.
@shapeshift-labs/frontier-richtext: Rich text Delta normalization/application, marks, embeds, ranges, and cursor/selection transforms for local editor integrations.
@shapeshift-labs/frontier-realtime: Shared realtime command, tick, snapshot, prediction, reconciliation, interpolation, rollback, message, and delta primitives.
@shapeshift-labs/frontier-realtime-server: Authoritative realtime room, tick, command validation, rate-limit, session, and snapshot-history runtime.
@shapeshift-labs/frontier-realtime-websocket: WebSocket client, wire, and Node room-server transport for Frontier realtime.
@shapeshift-labs/frontier-game: Game-facing entity, component, player, room, ownership, spatial interest, rollback, physics, and replication helpers above realtime.

Package source repositories:

Install

npm install @shapeshift-labs/frontier-trace

Benchmarks

These are Frontier-only package measurements, not competitor comparisons.

Run package-local measurements:

npm run bench

The benchmark covers trace creation, resource/feature/path queries, impact tracing, critical-path/timeline analysis, feature map generation, registry graph generation, Chrome trace export, JSONL encode/decode, redaction, and proof hashing.

Latest local package benchmark on Node v26.1.0, darwin arm64, 1k spans and 30 rounds:

| Fixture | Median | p95 | | --- | ---: | ---: | | create-trace-1000 | 4.32 ms | 6.26 ms | | query-resource-1000 | 28.23 us | 31.95 us | | query-feature-1000 | 112.77 us | 136.35 us | | query-path-1000 | 31.51 us | 44.99 us | | impact-resource-1000 | 29.58 us | 72.91 us | | analyze-trace-1000 | 1.41 ms | 1.92 ms | | feature-map-1000 | 7.10 ms | 8.07 ms | | registry-graph-1000 | 12.65 ms | 21.65 ms | | chrome-events-1000 | 876.38 us | 1.64 ms | | jsonl-encode-1000 | 10.38 ms | 11.48 ms | | jsonl-decode-1000 | 7.46 ms | 9.09 ms | | redact-trace-1000 | 3.77 ms | 5.02 ms | | proof-1000 | 11.72 ms | 12.21 ms |

Published

Vulnerabilities

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Maintainers

Keywords

Readme

@shapeshift-labs/frontier-trace

Ideas

Boundary

Related Packages

Install

Benchmarks