What is Tacit used for?

Tacit is a local app that captures Claude Code, Codex and Gemini sessions, extracts intent and decisions, and makes them searchable by project. It is a good fit for finding what you decided about a feature weeks ago, handing off an agent session to another person and reviewing blockers across projects.

How much does Tacit cost?

Tacit is a paid product with no free plan. A one-time purchase of $29, with a free trial; no subscription.

Is Tacit open source?

No. Tacit is proprietary (closed-source) software. In the Developer Tools category, open-source options include Munder Difflin, Agentacct and GitHub Desktop.

What are some alternatives to Tacit?

Other SaaS products in the Developer Tools category include Crowsnest, Headroom and 1DevTool.

Tacit: features, pricing and alternatives

About Tacit

Tacit keeps a log of what happens in AI coding agent sessions. It watches the local session files of Claude Code, Codex and Gemini, builds one project-scoped index on the user's machine, and extracts intent, decisions, blockers and outcomes from each run into scan-friendly fields. Developers can then search for why something was done, such as an authentication decision, open the handoff and resume with context.

The app is keyboard-first, with shortcuts for opening projects, searching sessions and opening a library of bookmarks. It runs entirely locally with no accounts or cloud storage and is available for Mac, Windows and Linux. The pitch is that agent sessions are valuable in the moment but hard to search or reference days later. Tacit is a one-time purchase, with a free trial offered, and the site mentions a roadmap and writing and skills sections.

Key features

Captures Claude Code, Codex and Gemini sessions
Extracts intent, decisions, blockers and outcomes
Search across sessions by project
Handoff and resume context
Interface designed for keyboard use
100% local with no accounts

Good fit for

Finding what you decided about a feature weeks ago
Handing off an agent session to another person
Reviewing blockers across projects

Tags: claude-code; codex; gemini; session-history; developer-tools; local-first; search; desktop-app

Tacit: questions and answers

What is Tacit used for?: Tacit is a local app that captures Claude Code, Codex and Gemini sessions, extracts intent and decisions, and makes them searchable by project. It is a good fit for finding what you decided about a feature weeks ago, handing off an agent session to another person and reviewing blockers across projects.
How much does Tacit cost?: Tacit is a paid product with no free plan. A one-time purchase of $29, with a free trial; no subscription.
Is Tacit open source?: No. Tacit is proprietary (closed-source) software. In the Developer Tools category, open-source options include Munder Difflin, Agentacct and GitHub Desktop.
What are some alternatives to Tacit?: Other SaaS products in the Developer Tools category include Crowsnest, Headroom and 1DevTool.