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.
npx skills add jdpalumbo2/workbench --skill agentmail-onboardgit clone --depth 1 https://github.com/jdpalumbo2/workbenchWrote 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.
[](https://agentmods.dev/skills/jdpalumbo2/workbench/agentmail-onboard)<a href="https://agentmods.dev/skills/jdpalumbo2/workbench/agentmail-onboard"><img src="https://agentmods.dev/badge/skills/jdpalumbo2/workbench/agentmail-onboard/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/jdpalumbo2/workbench/agentmail-onboard"><img src="https://agentmods.dev/badge/skills/jdpalumbo2/workbench/agentmail-onboard.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00112 | $0.00741 |
| Opus 5.5 | $0.00045 | $0.00296 |
| Sonnet 5.5 | $0.00022 | $0.00148 |
| Haiku 4.5 | $0.00011 | $0.00074 |
Grade A, and why
agentmail-onboard scanned grade A with 0 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 1mo 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.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 59 lines — stays where its author put it; the contents beside it link to each section on GitHub.
agentmail-onboard
Overview
Interactive driver for onboarding ONE new agentmail agent. This skill contains no facts about any specific infrastructure — no hosts, ids, domains, or bot names. All of that lives in the operator's control-plane repo, whose onboarding runbook is the single authority. This skill's job is pacing and discipline: read the runbook, interview the operator, drive the steps in order, never skip the verification.
Core principle: the runbook is the source of truth. If this skill and the runbook ever disagree, the runbook wins.
Prerequisites
- The agentmail control-plane repo, default
~/code/mission-control— if it is not there, ask the operator where it lives before doing anything else. - Inside it:
docs/agentmail-onboarding.md(the runbook). Missing → stop and say so; do not improvise an onboarding. - Read the control-plane repo's
CLAUDE.mdfirst — its guardrail tiers govern every action this walkthrough takes.
Process
- Read the runbook — fully, fresh, this session. Never drive from memory of a previous run; the runbook changes as the platform learns.
- Interview before touching anything: agent name, target repo (default: the current working directory — confirm it), persona/charter answers (what the agent does, who it corresponds with, voice, boundaries), and the first allowlisted contacts.
- Drive the runbook's numbered steps in order. For each step:
- Steps the assistant performs: execute at the tier the runbook marks — announce-then-proceed steps get the announcement, wait-for-approval steps get presented and WAIT.
- Steps the operator performs (phone apps, pasting into editors, running
!-prefixed commands, approval taps): give exactly one instruction per message, then wait for the result before the next. Batched instructions get skipped or half-done.
- Certification: run the runbook's E2E matrix section completely. Report each check's actual result; a failed check stops the onboarding until fixed.
- Documentation duties: finish the runbook's same-session ledger section. Commit or push nothing unless the operator asks.
What ships with it
1 file 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.
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.
- 1mo ago First seen · 59 lines · 112 tokens per session scan A 426a41d285cc
agentmail-onboard is a skill published in the GitHub repository jdpalumbo2/workbench (1 stars, last pushed 15d ago), licensed MIT. It adds 112 tokens to every session and 741 once invoked, about $0.0004 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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