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134 lines
4.9 KiB
HTML
134 lines
4.9 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Session Management | Kit</title>
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<meta name="description" content="How Kit persists and manages conversation sessions.">
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<link rel="canonical" href="/sessions">
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<link rel="stylesheet" href="/assets/index-Di_r5hA0.css">
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<script type="module" src="/assets/index-BbQ_p9l4.js"></script>
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<script type="application/ld+json">{"@context":"https://schema.org","@type":"TechArticle","headline":"Session Management","description":"How Kit persists and manages conversation sessions.","url":"https://go-kit.dev/sessions","isPartOf":{"@type":"WebSite","name":"Kit","url":"https://go-kit.dev"}}</script>
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<body>
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<div id="tome-root"></div>
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<div data-pagefind-body style="display:none"><h1>Session Management</h1>
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# Session Management
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Kit uses a tree-based session model that supports branching and forking conversations.
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## Session storage
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Sessions are stored as JSONL (JSON Lines) files:
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```
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~/.kit/sessions/<cwd-path>/<timestamp>_<id>.jsonl
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```
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Path separators in the working directory are replaced with `--`. For example, `/home/user/project` becomes `home--user--project`.
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Each line in the session file is a JSON entry representing a message, tool call, model change, or extension data. The tree structure allows branching from any message to explore alternate paths.
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## Compaction
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When conversations grow long, Kit can compact them to free up context window space. The compaction system:
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- **Non-destructive**: Old messages remain on disk for history; only the LLM context is summarized
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- **File tracking**: Tracks which files were read and modified across compactions
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- **Split-turn handling**: Can summarize large single turns by splitting them
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- **Tool result truncation**: Caps tool output during serialization to stay within token budgets
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Use `/compact [focus]` to manually compact, or enable `--auto-compact` to compact automatically near the context limit.
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## Auto-cleanup
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Kit automatically cleans up empty sessions on shutdown and when using `/resume`. A session is considered empty if it has no messages beyond the initial system prompt. This prevents cluttering your sessions directory with unused files.
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To start fresh without creating a session file at all, use ephemeral mode:
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```bash
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kit --no-session
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```
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## Resuming sessions
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### Continue most recent
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```bash
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kit --continue
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kit -c
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```
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### Interactive picker
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Choose from previous sessions interactively:
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```bash
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kit --resume
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kit -r
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```
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The session picker supports search, scope/filter toggles (all sessions vs. current directory), and session deletion. You can also open it during a session with the `/resume` slash command.
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### Open a specific session
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```bash
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kit --session path/to/session.jsonl
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kit -s path/to/session.jsonl
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```
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## Session commands
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These slash commands are available during an interactive session:
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| Command | Description |
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|---------|-------------|
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| `/name [name]` | Set or display the session's display name |
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| `/session` | Show session info (path, ID, message count) |
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| `/resume` | Open the session picker to switch sessions |
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| `/export [path]` | Export session as JSONL (auto-generates path if omitted) |
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| `/import <path>` | Import and switch to a session from a JSONL file |
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| `/share` | Upload session to GitHub Gist and get a shareable viewer URL |
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| `/tree` | Navigate the session tree |
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| `/fork` | Fork to new session from an earlier message (creates new session file) |
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| `/new` | Start a new session (creates new session file) |
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## Ephemeral mode
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Run without creating a session file:
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```bash
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kit --no-session
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```
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This is useful for one-off prompts, scripting, and subagent patterns where persistence isn't needed.
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## Sharing sessions
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The `/share` command uploads your session JSONL to GitHub Gist (via the `gh` CLI) and prints a shareable viewer URL:
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```
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/share
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```
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The shared session includes:
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- The **system prompt** that was active during the conversation
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- The **model** used (e.g., `anthropic/claude-sonnet-4-5`)
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The viewer displays this information in a collapsible "System Prompt" section at the top of the session, with the model shown as a badge in the header.
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The viewer is available at `https://go-kit.dev/session/#GIST_ID` and supports all message types including text, reasoning blocks, tool calls, images, and model changes.
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You can also load any JSONL session via URL parameter: `https://go-kit.dev/session/?url=https://example.com/session.jsonl`
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## Preferences persistence
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Kit automatically saves your preferences across sessions to `~/.config/kit/preferences.yml`:
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- **Theme** — Set via `/theme <name>`
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- **Model** — Set via `/model <name>` or the model selector
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- **Thinking level** — Set via `/thinking <level>` or Shift+Tab cycling
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These preferences are restored on next launch. Precedence: CLI flag > config file > saved preference > default.</div>
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</body>
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</html> |