Higgs
Summary
Higgs is a productivity tool whose purpose and technical approach are not documented in public sources.
No description, benchmarks, or usage details are available for this entry. The directory lists it under productivity with unknown pricing and confirms it is not open source. Without a stated problem domain or output type, it is impossible to determine whether the tool targets task automation, note management, workflow orchestration, or another area. Concrete numbers for cost, performance, or limitations cannot be supplied from current records.
Bottom line: Skip until verifiable details on function and pricing appear.
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Most local-AI tooling forces a choice: keep your data private, or get the structured output that agents actually need. higgs refuses that trade. It connects to Proton Mail Bridge on 127.0.0.1, sends mail to a local model you run — Gemma 4 via Ollama by default, or any OpenAI-compatible server you configure with PM_LLM_BACKEND=openai — and returns classified, searchable, answerable results with zero external calls. The core loop is: install Bridge, point higgs at it, run classify or search or ask, pipe NDJSON results into the next command.
The agent contract is what separates higgs from most privacy-first CLI tools. Calling higgs schema classify returns a machine-readable JSON manifest: flags, argument types, stdout format, and an enumerated set of exit codes. Agents load that schema once and drive commands without prompt-engineering the flags every session. Output is NDJSON — one object per line, stream terminated by a typed summary object — so a script knows exactly when the stream ends and can branch on .error.k rather than matching English error strings. Bridge credentials live in the OS keyring and never enter the model’s context window.
Higgs fits one profile precisely: Proton Mail users who want local AI that an auditor or security team can actually verify. Releases are cosign-signed with an SBOM under Apache-2.0, and the vendor states zero telemetry — no analytics, no crash reporting, no update pings. The scope is also the ceiling: there is no GUI, no web interface, and no API surface to call from a remote service. Teams that need a visual workflow builder, support for any mail provider other than Proton, or hosted inference as a fallback will exhaust what higgs does inside an afternoon.