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undefined-ui/second-brain-os

An AI second brain that maintains itself. Full guide, starter vault, agent skills and scripts for a self-organizing knowledge base in Claude Code and Obsidian.

↗ GitHub ★ 811 mit updated 10d ago project Claude Code Claude plugin
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ARCHETYPE
Skill Collector
Ten-plus skills loaded on demand. A procedural-knowledge library.
CONTEXT TAX · EVERY TURN
~1.2k tokens
Featherweight · median rig: 2.3k · breakdown
GUARDRAILS
0/5
No committed guardrails · details

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# review before running: this installs third-party code
$ npx degit undefined-ui/second-brain-os/skills ./rig-second-brain-os/skills

MCP servers are added to Claude Code at local scope; env vars are shown as YOUR_… placeholders — we never store values. Files are fetched with degit into a separate folder so you can review before merging.

$ npx degit undefined-ui/second-brain-os/plugins/agents-course/skills/context-audit .claude/skills/context-audit
$ npx degit undefined-ui/second-brain-os/plugins/agents-course/skills/evals-bootstrap .claude/skills/evals-bootstrap
$ npx degit undefined-ui/second-brain-os/plugins/agents-course/skills/gate-check .claude/skills/gate-check
$ npx degit undefined-ui/second-brain-os/plugins/agents-course/skills/goal-test .claude/skills/goal-test
$ npx degit undefined-ui/second-brain-os/plugins/agents-course/skills/harness-audit .claude/skills/harness-audit
$ npx degit undefined-ui/second-brain-os/skills/second-brain-backfill .claude/skills/second-brain-backfill
$ npx degit undefined-ui/second-brain-os/skills/second-brain-changed-my-mind .claude/skills/second-brain-changed-my-mind
$ npx degit undefined-ui/second-brain-os/skills/second-brain-chat-import .claude/skills/second-brain-chat-import
$ npx degit undefined-ui/second-brain-os/skills/second-brain-graph .claude/skills/second-brain-graph
$ npx degit undefined-ui/second-brain-os/skills/second-brain-ingest .claude/skills/second-brain-ingest
$ npx degit undefined-ui/second-brain-os/skills/second-brain-lint .claude/skills/second-brain-lint
$ npx degit undefined-ui/second-brain-os/skills/second-brain-merge .claude/skills/second-brain-merge
$ npx degit undefined-ui/second-brain-os/skills/second-brain-metrics .claude/skills/second-brain-metrics
$ npx degit undefined-ui/second-brain-os/skills/second-brain-privacy .claude/skills/second-brain-privacy
$ npx degit undefined-ui/second-brain-os/skills/second-brain-project .claude/skills/second-brain-project
$ npx degit undefined-ui/second-brain-os/skills/second-brain-publish .claude/skills/second-brain-publish
$ npx degit undefined-ui/second-brain-os/skills/second-brain-query .claude/skills/second-brain-query
$ npx degit undefined-ui/second-brain-os/skills/second-brain-quiz .claude/skills/second-brain-quiz
$ npx degit undefined-ui/second-brain-os/skills/second-brain-rename .claude/skills/second-brain-rename
$ npx degit undefined-ui/second-brain-os/skills/second-brain-report .claude/skills/second-brain-report
$ npx degit undefined-ui/second-brain-os/skills/second-brain-review .claude/skills/second-brain-review
$ npx degit undefined-ui/second-brain-os/skills/second-brain-transcript .claude/skills/second-brain-transcript
$ npx degit undefined-ui/second-brain-os/skills/second-brain-write .claude/skills/second-brain-write

This rig commits no guardrails. Here is the community baseline instead — the deny/ask rules most often found across all 7,204 rigs:

{
  "permissions": {
    "deny": [
      "Read(./.env)",
      "Read(**/.env)",
      "Read(~/.ssh/**)",
      "Bash(rm -rf *)",
      "Read(**/*.pem)",
      "Bash(rm -rf /)",
      "Bash(git push --force:*)",
      "Bash(sudo *)",
      "Read(.env)",
      "Bash(rm -rf /*)",
      "Read(./.env.*)",
      "Read(~/.aws/**)",
      "Bash(git push --force*)",
      "Bash(rm -rf:*)",
      "Read(**/*.key)",
      "Read(**/.env.*)",
      "Bash(sudo:*)",
      "Bash(git reset --hard*)",
      "Bash(git reset --hard:*)",
      "Read(.env.*)"
    ],
    "ask": [
      "Bash(git push:*)",
      "Bash(git push *)",
      "Bash(git commit:*)",
      "Bash(rm *)",
      "Bash(rm:*)",
      "Bash(git rebase *)",
      "Bash(wget *)",
      "Bash(npm publish:*)",
      "Bash(git commit *)",
      "Bash(gh pr merge *)"
    ]
  }
}

Skills (23)

context-auditevals-bootstrapgate-checkgoal-testharness-auditsecond-brain-backfillsecond-brain-changed-my-mindsecond-brain-chat-importsecond-brain-graphsecond-brain-ingestsecond-brain-lintsecond-brain-mergesecond-brain-metricssecond-brain-privacysecond-brain-projectsecond-brain-publishsecond-brain-querysecond-brain-quizsecond-brain-renamesecond-brain-reportsecond-brain-reviewsecond-brain-transcriptsecond-brain-write

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