1password

1password is a skill for Claude Code from petejm/1password-skill. It costs 65 tokens per session (8,248 once invoked), scanned B, original, Apache-2.0.

A practical guide for using the 1Password command-line tool to access secrets and configure authentication workflows. 1Password is a password manager, and the command-line tool lets scripts and development tools use its stored credentials.

In plain words
What is it for?
Use it for runtime secret access, configuration files, SSH authentication, Git commit signing, shell plugins, CI environments, and 1Password CLI troubleshooting.
Why use it?
It helps troubleshoot failed Git authentication, missing secrets, SSH-agent problems, commit signing, account confusion, and command-line setup while keeping secret values out of the agent’s conversation where possible.

Skill for Claude Code

Written for Claude Code: when-to-use in frontmatter. Also seen: mentions Claude Code; built for cline; mentions OpenCode.

Part of the 1password-skill plugin — 1 skill shipped together

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/petejm/1password-skill/1password
Any agent
npx skills add petejm/1password-skill --skill 1password
Clone the repo
git clone --depth 1 https://github.com/petejm/1password-skill

Made for: Claude Code.

Or install 1password-skill, the plugin that ships this one along with the rest of its 1 skill.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for 1password

README.md
[![agentmods](https://agentmods.dev/badge/skills/petejm/1password-skill/1password.svg)](https://agentmods.dev/skills/petejm/1password-skill/1password)
Your own site
<a href="https://agentmods.dev/skills/petejm/1password-skill/1password"><img src="https://agentmods.dev/badge/skills/petejm/1password-skill/1password.svg" alt="Measured on agentmods" height="20"></a>
Per session 65 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 8,248 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 2 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00065 $0.08248
Opus 5 $0.00032 $0.04124
Sonnet 5 $0.00013 $0.01650
Haiku 4.5 $0.00006 $0.00825

Measured 6d ago against content hash b4808f3ba2a6, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade B, and why

1password scanned grade B with 2 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 6d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Asks for rootmediumPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

Claude Code's bubblewrap sandbox strips setgid bits; `op` requires the `onepassword-cli` group. Symptom: works in terminal but fails as a Claude tool call. Fix: `sudo usermod -aG onepassword-cli $(whoami)`, then log out

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

**Basic auth** (username+password, not token) — never use `curl -u` (mangles special chars):
integrations/gemini-cli/skills/1password/SKILL.md · 583 lines

How it starts

The opening of the file, as written. The whole thing — 583 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Requires: op CLI 2.30.0+ with desktop app integration enabled — 2.30.0 made human-readable output concealed by default and added the --reveal flag this skill depends on. Run op --version to check.

1Password CLI — Decision Router

You're seeing... Go to
"Permission denied (publickey)" / git push auth fails → Auth Recovery
Need a secret value at runtime → Runtime Access
Don't know the vault, item, or field name → Runtime Access
Setting up op:// in config files / .env → Config File Patterns
SSH agent not responding / wrong socket path → SSH Agent
Git commit signing setup or failures → Git Signing
gh, aws, or claude should authenticate through 1Password → Shell Plugins
Headless / CI / no desktop app available → Service Accounts
op hangs, times out, or biometric won't appear → Troubleshooting
Wrong account / multi-account confusion → Troubleshooting
op not found / not installed → Troubleshooting
Specific error message → Error Catalog

Security Rules

  1. Prefer op run over op read — secret never enters conversation context. Never add --no-masking.
  2. Never run op commands speculatively — a command that needs authentication raises a biometric prompt on the user's desktop and physically interrupts them. An already-unlocked session answers silently (op signin --help: "'op signin' is idempotent. It only prompts for authentication if you aren't already authenticated"), so you cannot tell in advance which one you will get. Run op only when the user's request requires it.
  3. Scope with --vault on op item get / op item list — prevents exposing item names across all vaults. op read and op run have no --vault flag; for those the vault is the first segment of the op:// reference.
  4. Never store secrets in files — use op run --env-file or op inject for templating.
  5. Don't bypass security hooks — if a hook blocks .1password/ paths, fix the approach (set SSH_AUTH_SOCK in shell profile, not per-command).
  6. 1Password's Secure AI access guidance: strip hardcoded secrets out of AI/MCP tool configs and let op run supply them at launch. See the MCP server pattern under Config File Patterns.

Read the full file on GitHub · 583 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 6d ago First seen · 583 lines · 65 tokens per session scan B b4808f3ba2a6

Subscribe to this mod's changes

1password is a skill published in the GitHub repository petejm/1password-skill (4 stars, last pushed 28d ago), licensed Apache-2.0. It adds 65 tokens to every session and 8,248 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it B with 2 findings (asks for root, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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