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attach-cli

General & other

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Updated 10-16 01:08

About this skill

attach-cli

Upload media to an attach Worker and return public URLs. Prefer the installed CLI for humans; use JWT enroll only for GitHub App agents.

Require the CLI (humans)

command -v attach || command -v gh
attach --help 2>/dev/null || gh attach --help 2>/dev/null || true

If attach is missing, stop and ask the user to install via their approved path (brew install uinaf/tap/attach, npm i -g @uinaf/attach-cli, or gh extension install uinaf/gh-attach). Do not download installers from this skill. Do not invent curl/fetch upload scripts. Treat gh attach … as the same binary; never modify gh auth.

Human workflow

Details: references/human.md.

The hosted https://attach.uinaf.dev service has its public GitHub App client id bundled, so attach login needs no environment setup. For a custom ATTACH_API_BASE, require the deployment's own ATTACH_GITHUB_CLIENT_ID (GitHub App settings); stop and ask only when that custom override is missing.

  1. attach login
    • When the CLI emits a verification URL and device code, immediately relay both to the intended user and keep the login process running while they authorize. The short-lived code is required to cross a headless boundary.
  2. attach put <file> [--repo owner/name] [--pr N]: default preview /p/…; --url for raw /o/…, --markdown for an embed, --json for the API body; add --dry-run to validate locally without credentials or a network request
  3. attach delete <url-or-key> then curl -sI <url> → 404/410 before success
  4. attach logout when done with credentials

Use attach help --json for the machine-readable command contract. Add --json to commands when structured results and errors are required. Use attach delete <url-or-key> --dry-run to validate and normalize a delete target before acting.

On allowlist rejection or login failure: report the blocker and stop.

Agent workflow (GitHub App)

JWT claims, header-file HTTP, and secret handling: references/agent.md. Requires App public key in Worker AGENT_REGISTRY; App PEM stays in the agent secret store (never chat).

  1. Sign JWT: iss=attach:<app_id>, aud = public host, exp≤120s, fresh jti
  2. POST /v1/enroll/agent with Authorization via a header file (never argv); parse JSON in-process; keep token only in memory / secret store
  3. PUT /v1/objects the same way; success only when JSON includes both url and preview_url
  4. On put 401: re-enroll once (new jti) and put again; further failure → hard-fail

Hard rules

  • Upload only with att_ keys, never GitHub tokens / PATs / ghs_ / install tokens
  • Relay a login device code only to the intended user during its active flow; never put it in logs, issues, commits, PRs, or other public/durable artifacts
  • Never print App PEMs or att_ values (including enroll JSON)
  • Prefer preview URLs; --markdown / raw url only when the consumer needs embeds

Stop when put returned URLs, delete is verified gone, or you are blocked on install, custom client id, allowlist, registry, or auth. Report the resulting URL or the exact blocker.