~ / rigs / decodingai-magazine / building-a-coding-agent-from-scratch-course

decodingai-magazine/building-a-coding-agent-from-scratch-course

Learn harness engineering by building Claude Code from scratch. Free, open-source course: 8 articles, 6 videos, 1 codebase.

↗ GitHub ★ 621 Apache-2.0 updated 1d ago project Claude CodeCodex
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ARCHETYPE
Pragmatist
A balanced, no-drama setup: some rules, some tools, nothing extreme.
CONTEXT TAX · EVERY TURN
~8.3k tokens
Heavy · median rig: 2.3k · breakdown
GUARDRAILS
1/5
No YOLO mode · details

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# review before running: this installs third-party code
$ claude mcp add kitaru -- uv run kitaru-mcp --server http://localhost:8000 --mode standard
$ npx degit decodingai-magazine/building-a-coding-agent-from-scratch-course/.claude ./rig-building-a-coding-agent-from-scratch-course  # inspect, then merge into .claude/

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.

$ claude mcp add kitaru -- uv run kitaru-mcp --server http://localhost:8000 --mode standard
$ npx degit decodingai-magazine/building-a-coding-agent-from-scratch-course/.agents/skills/manual-e2e-qa .claude/skills/manual-e2e-qa
$ npx degit decodingai-magazine/building-a-coding-agent-from-scratch-course/.decode/skills/demo-1-terminal-arcade .claude/skills/demo-1-terminal-arcade
$ npx degit decodingai-magazine/building-a-coding-agent-from-scratch-course/.decode/skills/demo-2-bug-hunt .claude/skills/demo-2-bug-hunt
$ npx degit decodingai-magazine/building-a-coding-agent-from-scratch-course/.decode/skills/demo-3-repo-pulse .claude/skills/demo-3-repo-pulse
$ npx degit decodingai-magazine/building-a-coding-agent-from-scratch-course/.decode/skills/demo-4-review-swarm .claude/skills/demo-4-review-swarm
$ npx degit decodingai-magazine/building-a-coding-agent-from-scratch-course/.decode/skills/demo-5-sandbox-feature-pr .claude/skills/demo-5-sandbox-feature-pr
$ npx degit decodingai-magazine/building-a-coding-agent-from-scratch-course/.decode/skills/demo-6-article-kg .claude/skills/demo-6-article-kg
$ npx degit decodingai-magazine/building-a-coding-agent-from-scratch-course/.decode/skills/grill-me .claude/skills/grill-me

This rig commits no guardrails. Here is the community baseline instead — the deny/ask rules most often found across all 6,974 rigs:

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

MCP servers (1)

serversourceest. tokens
kitaru-mcp · "kitaru" pypi 2.5k

Skills (8)

Plugins (6)

squid@iusztinpaulcontext7@claude-plugins-officialcode-review@claude-plugins-officialcommit-commands@claude-plugins-officialkitaru@kitarucaveman@caveman

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