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m3ta-chiron 6a5d8f0011 feat(agents): add strict security hardening for Pi and OpenCode

Pi Guardrails:
- Enables @aliou/pi-guardrails with strict default config
- Sets onboarding.completed = true to skip onboarding prompt
- Enables pathAccess in ask mode for /nix/store and /tmp
- Adds noAccess policies for: SSH keys, GPG keys, AWS config,
  Kubernetes config, cloud CLI configs (gh/gcloud/1password/sops),
  agenix secrets, Pi auth/sessions, env files, private keys/certs
- Adds auto-deny patterns for env leakage commands:
  env, printenv, /proc/*/environ, GPG secret exports,
  ssh-add -D, password manager reads

OpenCode permissions:
- Adds permission section with global security rules
- external_directory: ask by default, allow /nix/store and /tmp
- read/edit: allow by default, deny SSH/GPG/AWS/Kube/cloud configs,
  agenix secrets, Pi auth/sessions, env files, private keys/certs
- glob: restrict sensitive path patterns
- grep: deny SSH/GPG/agenix, ask for PASSWORD/SECRET/API_KEY/PRIVATE_KEY
- bash: ask by default, allow safe git/nix commands,
  deny env/printenv/proc/GPG secret/sudo/ssh-add deletion/curl|sh
- webfetch: ask by default, allow github/nixos search
- doom_loop: ask

2026-04-29 19:48:29 +02:00