| What it does | Keep the why with your code
| A Rust performance profiler for finding CPU, memory, async, SQL, HTTP, I/O and lock bottlenecks
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| Stage | Not given
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| Founded | Not given
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| Based in | Not given
| PL
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| Pricing model | Open source
| Open source
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| Pricing | Not given
| Free and open source under MIT license
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| Key features | - Records stated reasoning for changes the agent logs
- Entity-level attribution for code elements
- Retrieves recorded attempts and outcomes
- Groups related changes across files
- Full-text search over change history
- Exports to Agent Trace format
- Local SQLite storage with no hosted backend
- MCP and CLI interfaces
- Concurrent readers and writers with WAL mode
| - Time, CPU & memory profiling
- Async observability for futures, channels and streams
- I/O monitoring for files, TCP and compression streams
- SQL query profiling for sqlx and Diesel
- HTTP calls profiling for reqwest and ureq
- HTTP server profiling for axum routes
- Concurrency metrics for Mutex and RwLock
- Tokio runtime monitoring
- Prometheus & Grafana integration
- CI regression detection with automatic benchmarking
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| What makes it different | - Zero network dependencies; all storage and history queries run locally
- Captures reasoning at the time of change from the agent's own context
- MIT-licensed open source with no vendor lock-in
- Works with any compatible AI agent through standard MCP protocol
- Validates reasoning quality to surface low-quality logs
| - No overhead when disabled—all macros compile to no-ops
- Deterministic instruction counts with Callgrind for stable CI regression checks
- Instruments real applications with real workloads, not isolated benchmarks
- MCP server for AI agent integration
- Live TUI dashboard and static reports
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| Free plan | Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 36 ● no change since last check | 54 ▲ +2 (up) since last check |
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| Trust Flow (Majestic) | 5 | 13 |
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| Citation Flow (Majestic) | 31 | 34 |
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| Referring domains (Majestic) | 97 | 151 |
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