one-password

A set of instructions for using the 1Password command-line tool to retrieve, store, and provide secrets in a terminal session. Secrets include passwords, API keys, and access tokens.

In plain words
What is it for?
Use it to check the operating environment, sign in when needed, read or create targeted 1Password items, and inject secrets into command-line workflows.
Why use it?
It provides a consistent process for accessing the exact secret needed while favoring service-account access and a persistent terminal session.

Skill for Claude CodeCodex

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

Made for: Claude Code, Codex.

Per session 21 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,678 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. 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 $0.00021 $0.02678
Opus 5 $0.00010 $0.01339
Sonnet 5 $0.00004 $0.00536
Haiku 4.5 $0.00002 $0.00268

Measured 2d ago against content hash dce57e6ca46a, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade B, and why

one-password scanned grade B with 1 finding 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 2d 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.

chmod 700 /tmp/op-store-secret.sh
skills/one-password/SKILL.md · 195 lines

How it starts

The opening of the file, as written. The whole thing — 195 lines — stays where its author put it; the contents beside it link to each section on GitHub.

1Password CLI

Follow the official CLI get-started steps. Don't guess install commands.

Requires the op and tmux binaries. On macOS install the CLI with brew install 1password-cli.

References

  • Official docs: https://developer.1password.com/docs/cli/get-started/
  • ~/.claude/skills/one-password/references/get-started.md (install + app integration + sign-in flow)
  • ~/.claude/skills/one-password/references/cli-examples.md (real op examples, including safe item create/edit patterns)

Workflow

  1. Check OS + shell.
  2. Verify CLI present inside tmux: op --version.
  3. REQUIRED: create exactly one persistent named tmux session for the whole secret task.
  4. Try scoped service-account access first when a matching token/workflow exists; no dialogs.
  5. If service-account access is missing or lacks the exact item/field needed, automatically try the desktop-app fallback in the same session. Do not ask for chat permission first.
  6. Desktop fallback: trigger app integration/unlock, then op signin once inside the same session. The 1Password prompt is the user approval boundary; ask in chat only if the prompt cannot be surfaced or completed.
  7. Verify chosen access path inside that same session: op whoami.
  8. If multiple accounts: use --account or OP_ACCOUNT.
  9. If a command fails, reuse the same tmux session with tmux send-keys; do not start a second session just to retry.

Default Account

  • Default account for personal/work secrets is my.1password.com (1Password's standard account domain).
  • Do not silently use my.1password.eu unless explicitly asked.
  • Pass --account my.1password.com on every op command when storing or reading secrets. Do not rely on ambient account selection.
  • op account list is metadata-only, but still must run inside tmux. Use it to confirm account names when routing is unclear.
  • op signin --account my.1password.com can return status 0 with no useful output and still not make a later shell signed in. Prefer doing sign-in, create/edit/get, and verification in the same tmux shell.

Read the full file on GitHub · 195 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 2d ago First seen · 195 lines · 21 tokens per session scan B dce57e6ca46a

Subscribe to this mod's changes

one-password is a skill published in the GitHub repository sublimecoder/aios (2 stars, last pushed 1mo ago), licensed MIT. It adds 21 tokens to every session and 2,678 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it B with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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