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Add a new machine's age public key to the project and re-encrypt all files so the new machine can decrypt them.
Detect current state:
python3 ${CLAUDE_SKILL_DIR}/../sops-setup/scripts/detect_sops.py <project-root>
Verify prerequisites:
project.sops_yaml.exists must be true — if not, tell user to run /devtools:sops-setup firstproject.encrypted_files should be non-empty — warn if there are no .enc.yaml files to re-encryptproject.tmp_files is non-empty, warn about stale temporary files (leftover from a failed decrypt/re-encrypt) and suggest the user delete themAudit key propagation (if encrypted files exist):
For each encrypted file, read its YAML and check the sops.age recipients list against project.sops_yaml.authorized_keys.
If any authorized key is missing from any file's recipients:
WARNING: Key age1xxx...yyy is in .sops.yaml but NOT a recipient in:
- apps/web/.env.local.enc.yaml
- apps/api/.env.local.enc.yaml
These files need re-encryption before the corresponding machine can decrypt them.
Offer to run sops updatekeys -y <file> for each affected file before proceeding with the new key addition.
Show current authorized keys from project.sops_yaml.authorized_keys:
Currently authorized keys (N):
1. age1abc...def (truncated)
2. age1ghi...jkl (truncated)
Use AskUserQuestion — ask user to paste the new machine's age public key. Validate it starts with age1.
Read .sops.yaml and add the new key to the age: field in creation_rules. Use the Edit tool to append the key to the comma-separated list or multi-line block.
Re-encrypt all files using sops updatekeys:
sops updatekeys -y <file>.enc.yaml
For each encrypted file. The -y flag auto-confirms. This re-wraps only the data encryption key for the new recipient list — values and MAC are unchanged, producing a minimal diff.
If sops updatekeys is not available (older sops version), fall back to decrypt + re-encrypt:
sops --decrypt <file>.enc.yaml > <file>.tmp.yaml
sops --encrypt <file>.tmp.yaml > <file>.enc.yaml
rm <file>.tmp.yaml
Verify: After re-encrypting, read each file's sops.age recipients block and confirm all keys from .sops.yaml (including the newly added key) appear as recipients. If any key is missing, warn the user that re-encryption may have failed.
Summary:
| Action | Detail |
|--------|--------|
| Key added | age1xyz... (new machine) |
| .sops.yaml | Updated (now N+1 authorized keys) |
| Re-encrypted | .env.local.enc.yaml |
| Re-encrypted | .env.production.enc.yaml |
Remind user to commit both .sops.yaml and the updated .enc.yaml files.
sops updatekeys): Re-wraps the DEK for the new recipient list. Safe, minimal diff. Use for onboarding machines.sops rotate -i): Generates a new DEK and re-encrypts every value. Use when a key is compromised or for periodic security hygiene.sops rotate -i after removing the compromised key from .sops.yaml.age1) before modifying .sops.yaml.enc.yaml files — missing any would lock out the new machine for those filessops updatekeys (not full decrypt/re-encrypt) for routine key additionsname: sops-add-key description: >- Add a new machine's age public key to .sops.yaml and re-encrypt all files. Use for multi-machine setups. Use when user mentions "add key", "add machine", "sops add key", "new machine", "authorize machine", "share key", "add public key", "multi machine sops". disable-model-invocation: true
---
name: sops-add-key
description: >-
Add a new machine's age public key to .sops.yaml and re-encrypt all files.
Use for multi-machine setups. Use when user mentions "add key", "add machine",
"sops add key", "new machine", "authorize machine", "share key",
"add public key", "multi machine sops".
disable-model-invocation: true
---
# SOPS Add Key
Add a new machine's age public key to the project and re-encrypt all files so the new machine can decrypt them.
## Workflow
1. **Detect current state**:
```bash
python3 ${CLAUDE_SKILL_DIR}/../sops-setup/scripts/detect_sops.py <project-root>
```
2. **Verify prerequisites**:
- `project.sops_yaml.exists` must be true — if not, tell user to run `/devtools:sops-setup` first
- `project.encrypted_files` should be non-empty — warn if there are no `.enc.yaml` files to re-encrypt
- If `project.tmp_files` is non-empty, warn about stale temporary files (leftover from a failed decrypt/re-encrypt) and suggest the user delete them
3. **Audit key propagation** (if encrypted files exist):
For each encrypted file, read its YAML and check the `sops.age` recipients list against `project.sops_yaml.authorized_keys`.
If any authorized key is missing from any file's recipients:
```
WARNING: Key age1xxx...yyy is in .sops.yaml but NOT a recipient in:
- apps/web/.env.local.enc.yaml
- apps/api/.env.local.enc.yaml
These files need re-encryption before the corresponding machine can decrypt them.
```
Offer to run `sops updatekeys -y <file>` for each affected file before proceeding with the new key addition.
4. **Show current authorized keys** from `project.sops_yaml.authorized_keys`:
```
Currently authorized keys (N):
1. age1abc...def (truncated)
2. age1ghi...jkl (truncated)
```
5. **Use `AskUserQuestion`** — ask user to paste the new machine's age public key. Validate it starts with `age1`.
6. **Read `.sops.yaml`** and add the new key to the `age:` field in `creation_rules`. Use the `Edit` tool to append the key to the comma-separated list or multi-line block.
7. **Re-encrypt all files** using `sops updatekeys`:
```bash
sops updatekeys -y <file>.enc.yaml
```
For each encrypted file. The `-y` flag auto-confirms. This re-wraps only the data encryption key for the new recipient list — values and MAC are unchanged, producing a minimal diff.
If `sops updatekeys` is not available (older sops version), fall back to decrypt + re-encrypt:
```bash
sops --decrypt <file>.enc.yaml > <file>.tmp.yaml
sops --encrypt <file>.tmp.yaml > <file>.enc.yaml
rm <file>.tmp.yaml
```
**Verify**: After re-encrypting, read each file's `sops.age` recipients block and confirm all keys from `.sops.yaml` (including the newly added key) appear as recipients. If any key is missing, warn the user that re-encryption may have failed.
8. **Summary**:
```
| Action | Detail |
|--------|--------|
| Key added | age1xyz... (new machine) |
| .sops.yaml | Updated (now N+1 authorized keys) |
| Re-encrypted | .env.local.enc.yaml |
| Re-encrypted | .env.production.enc.yaml |
```
Remind user to **commit** both `.sops.yaml` and the updated `.enc.yaml` files.
## Key Rotation vs Key Addition
- **Adding a key** (`sops updatekeys`): Re-wraps the DEK for the new recipient list. Safe, minimal diff. Use for onboarding machines.
- **Rotating keys** (`sops rotate -i`): Generates a new DEK and re-encrypts every value. Use when a key is **compromised** or for periodic security hygiene.
- If the user mentions a compromised key, recommend `sops rotate -i` after removing the compromised key from `.sops.yaml`.
## Key Rules
- Validate the public key format (must start with `age1`) before modifying `.sops.yaml`
- Always show the current keys before adding a new one
- Re-encrypt ALL `.enc.yaml` files — missing any would lock out the new machine for those files
- Use `sops updatekeys` (not full decrypt/re-encrypt) for routine key additions
- After re-encryption, the new machine can clone and decrypt immediately
Free to get does not mean free to run. Price labels are not safety ratings. Submit pricing information →
Skill source recorded
Skill instructions are recorded. This is not a runtime test, safety guarantee or compatibility certification.
Review before install: Avoid automatic install
License: MIT
Listed tools are metadata hints, not tested compatibility. Agent prompts are suggested handoffs.
Check the source for dependencies, API keys and third-party costs. A public repository does not mean every service is free.
Repository metadata and review signals are advisory. Popularity, source discovery and successful execution are different facts.
Version reported in registry metadata; check source releases before relying on it.
Quality
49/100
Needs review
Trust
53/100
Do not auto-install
Audit
66/100
Needs review
Copies are not installs. Installation counts require a reported successful installation; they are not a blanket quality guarantee.
This page exposes the same decision, trust, audit, use-case, and install signals through the Registry API, so agents can rank this skill without scraping the UI.
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"permissionSurface": "secrets or environment access, shell or command execution",
"documentation": "Thin public metadata",
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}
}Listing source
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