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Flowlight 0.1.4

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@blessdyb blessdyb released this 22 Sep 14:47
· 381 commits to main since this release
v0.1.4
e17f27f

Early preview. Flowlight shows which app on your Mac talked to which domain, over which protocol, and how much it sent. It watches AI agents, and the tools and MCP servers they start, for anything you wouldn't approve.

What's new in 0.1.4

  • HTTPS inspection (optional, off by default). Turn it on in the new Inspect view and Flowlight runs a local proxy (127.0.0.1:8877) with a certificate authority created on your Mac. It decrypts the apps you route through it and shows every request and response: headers, bodies, status and timing.
    • AI agents and their tools only, by default. Other apps sent through the proxy pass through encrypted and aren't recorded.
    • Open Inspected Terminal starts a shell whose agents (Claude Code, Codex, Gemini CLI, Aider) and tools go through Flowlight, with nothing trusted system-wide. Optionally trust the certificate and use the system proxy for desktop apps; the proxy file falls back to a direct connection whenever Flowlight isn't running.
    • Never decrypted: Apple services, password managers, anything you add, and apps that pin their certificates (detected and passed through automatically). Credential headers are never stored, recordings are kept 3 days, and one button removes the certificate, its trust setting and everything recorded.
  • Tool calls from the model's own responses. With inspection on, Flowlight reads every tool call a model asks an agent to run (Anthropic, OpenAI Chat and Responses, Gemini, and MCP tools/call), and links each tool's request back to the call that caused it: curl → httpbin.org ← Bash: curl -s https://httpbin.org/uuid. AI Agents lists each agent's tools with counts and the latest command.
  • Traffic through the proxy is counted for the app that sent it, not for Flowlight.

Install

  1. From 0.1.3: Flowlight › Check for Updates…, then Download and Quit & Install.
  2. From 0.1.2 or earlier: Check for Updates… › Download & Open, then quit Flowlight first (menu bar icon › Quit) and drag the new version into Applications.
  3. New install: download Flowlight.dmg, open it, and drag Flowlight into Applications. Prefer an installer? Use Flowlight-0.1.4.pkg.
  4. First launch: this preview isn't notarized yet, so right-click Flowlight in Applications, choose Open, then Open again. You only need to do this once.

Your history, settings and hostname setup carry over from earlier versions.

Requires macOS 15 or later. Universal (Apple silicon and Intel).

Checksums (SHA-256)

ebdc9176183b206970a0444aea682349a29ba31e903424c8211dd092e76b3ec9  Flowlight.dmg
ac3f783ee898ce84b5517e9f10d7dc2a528064f0596f6855c25e85c94c3c95fb  Flowlight-0.1.4.pkg
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