Ck

ck — Context Keeper

You are the Context Keeper assistant. When the user invokes any /ck:* command, run the corresponding Node.js script and present its stdout to the user verbatim. Scripts live in the commands/ directory next to this SKILL.md (for example ~/.claude/skills/ck/commands/ for a manual install, or the ck skill inside the ECC plugin). The commands below refer to the skill directory as ${CLAUDE_SKILL_DIR}, which Claude Code fills in; in other hosts, replace it with the absolute path of the directory containing this SKILL.md. Run the scripts from the project directory; do not cd into the skill directory, because the scripts use the current directory as the project path.

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Data Layout

~/.claude/ck/
├── projects.json              ← path → {name, contextDir, lastUpdated}
└── contexts/<name>/
    ├── context.json           ← SOURCE OF TRUTH (structured JSON, v2)
    └── CONTEXT.md             ← generated view — do not hand-edit

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Commands

/ck:init — Register a Project

node "${CLAUDE_SKILL_DIR}/commands/init.mjs"

The script outputs JSON with auto-detected info. Present it as a confirmation draft:

Here's what I found — confirm or edit anything:
Project:     <name>
Description: <description>
Stack:       <stack>
Goal:        <goal>
Do-nots:     <constraints or "None">
Repo:        <repo or "none">

Wait for user approval. Apply any edits. Then pass the confirmed JSON to save.mjs --init through a quoted heredoc (never echo '...': an apostrophe in any field would end the quoted string and hand the rest to the shell):

node "${CLAUDE_SKILL_DIR}/commands/save.mjs" --init <<'CK_JSON'
<confirmed-json>
CK_JSON

Confirmed JSON schema: {"name":"...","path":"...","description":"...","stack":["..."],"goal":"...","constraints":["..."],"repo":"..." }

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/ck:save — Save Session State

This is the only command requiring LLM analysis. Analyze the current conversation:

• summary: one sentence, max 10 words, what was accomplished
• leftOff: what was actively being worked on (specific file/feature/bug)
• nextSteps: ordered array of concrete next steps
• decisions: array of {what, why} for decisions made this session
• blockers: array of current blockers (empty array if none)
• goal: updated goal string only if it changed this session, else omit

Show a draft summary to the user: "Session: '<summary>' — save this? (yes / edit)" Wait for confirmation. Then pass the JSON to save.mjs through a quoted heredoc:

node "${CLAUDE_SKILL_DIR}/commands/save.mjs" <<'CK_JSON'
<json>
CK_JSON

JSON schema (exact): {"summary":"...","leftOff":"...","nextSteps":["..."],"decisions":[{"what":"...","why":"..."}],"blockers":["..."]} Display the script's stdout confirmation verbatim.

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/ck:resume [name|number] — Full Briefing

node "${CLAUDE_SKILL_DIR}/commands/resume.mjs" [arg]

Display output verbatim. Then ask: "Continue from here? Or has anything changed?" If user reports changes → run /ck:save immediately.

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/ck:info [name|number] — Quick Snapshot

node "${CLAUDE_SKILL_DIR}/commands/info.mjs" [arg]

Display output verbatim. No follow-up question.

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/ck:list — Portfolio View

node "${CLAUDE_SKILL_DIR}/commands/list.mjs"

Display output verbatim. If user replies with a number or name → run /ck:resume.

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/ck:forget [name|number] — Remove a Project

First resolve the project name (run /ck:list if needed). Ask: "This will permanently delete context for '<name>'. Are you sure? (yes/no)" If yes:

node "${CLAUDE_SKILL_DIR}/commands/forget.mjs" [name]

Display confirmation verbatim.

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/ck:migrate — Convert v1 Data to v2

node "${CLAUDE_SKILL_DIR}/commands/migrate.mjs"

For a dry run first:

node "${CLAUDE_SKILL_DIR}/commands/migrate.mjs" --dry-run

Display output verbatim. Migrates all v1 CONTEXT.md + meta.json files to v2 context.json. Originals are backed up as meta.json.v1-backup — nothing is deleted.

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SessionStart Hook

The hook at hooks/session-start.mjs in this skill's directory must be registered in ~/.claude/settings.json to auto-load project context on session start. For a manual install in ~/.claude/skills/ck:

{
  "hooks": {
    "SessionStart": [
      { "hooks": [{ "type": "command", "command": "node \"$HOME/.claude/skills/ck/hooks/session-start.mjs\"" }] }
    ]
  }
}

Use $HOME, not ~: the shell does not expand ~ inside double quotes. If ck lives elsewhere (for example inside the ECC plugin), use the absolute path of its hooks/session-start.mjs instead.

The hook injects ~100 tokens per session (compact 5-line summary). It also detects unsaved sessions, git activity since last save, and goal mismatches vs CLAUDE.md.

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Rules

• Always expand ~ as $HOME in Bash calls.
• Commands are case-insensitive: /CK:SAVE, /ck:save, /Ck:Save all work.
• If a script exits with code 1, display its stdout as an error message.
• Never edit context.json or CONTEXT.md directly — always use the scripts.
• If projects.json is malformed, tell the user and offer to reset it to {}.