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lensflare-desktop
Query local Lensflare telemetry datasets directly in Claude Code to analyze traces span-by-span for debugging slow requests and errors, summarize recent failures with root causes across services, and translate natural language questions into executed log and metric queries with summarized insights.
What's Inside
Skills3
analyze-trace
/analyze-trace
Walk a Lensflare trace span-by-span and explain timing, errors, and parent/child structure. Use when the user pastes a trace id, asks "why is this slow", or wants a request-level post-mortem of a real production / dev request captured in Lensflare.
find-error
/find-error
Find recent errors in a Lensflare dataset and summarise their root cause. Use when the user asks "what's broken", "what errors are happening", or pastes a vague stack trace and wants the actual failure context from the running system.
query-logs
/query-logs
Translate a natural-language question about logs or telemetry into a Lensflare query and return the results. Use when the user asks "find logs that…", "show me…", or describes a filter in prose that should map to a structured query.
MCP Servers1
README
Lensflare
Lensflare is a local observability workspace for inspecting logs and traces while you build. It includes a web UI, a local server, a desktop app, and a small Effect SDK that sends development telemetry to your local Lensflare dataset.
Quick Start
Install dependencies:
pnpm install
Run the local server and web app:
pnpm dev
Run the desktop app:
pnpm dev:desktop
Build and test:
pnpm build
pnpm test
Effect SDK
The first public package is @lensflare.dev/effect, an Effect layer for sending logs and traces to Lensflare during local development.
pnpm add effect @lensflare.dev/effect
import { Effect } from "effect";
import { Lensflare } from "@lensflare.dev/effect";
const program = Effect.gen(function* () {
yield* Effect.log("hello from Lensflare");
});
Effect.runPromise(program.pipe(Effect.provide(Lensflare.layer("dev"))));
See packages/effect for package documentation.
Development
This repository uses Node 24 and pnpm 10. The main workspace commands are:
pnpm dev
pnpm dev:web
pnpm dev:server
pnpm dev:desktop
pnpm check
pnpm typecheck
pnpm test
pnpm build
Before writing Effect code, consult the local Effect guidance described in AGENTS.md.
Releases
Desktop app releases are published through GitHub Releases. Package releases are managed with Changesets and published to NPM.
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Version0.1.0
Released
LanguageTypeScript
Stars85
Forks2
MaintenanceGood
LicenseMIT
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