SKILLEMALL.ai

AF cargo-mailbox-management

Send mail from inboxes Cargo owns — provision mailboxes on a sending domain, run provider warm-up and the 5→40/day send ramp, deliver with the `sendEmail` action, and read back threads, replies, delivery events, and the workspace suppression list. Triggers: "set up a sending mailbox", "provision inboxes for outbound", "warm up this mailbox", "how many sends do I have left today", "send this from Cargo", "did they reply", "who unsubscribed", "suppress this recipient", "take me off your list", "never email them again", "what do mailboxes cost", "my mailbox is stuck pending". A mailbox is a recurring monthly credit charge, and every send is gated on basis, suppression, and relevance. Skip when: writing the copy or building the audience — use cargo-gtm; the mailbox belongs in git — use cargo-cdk.

ClawHub Agent Skills author: Cargo v1.0.2 MIT-0 8 files body ≈ 4 313 tokens Open the sourceclawhub.ai analyzed 3 d ago

Send mail from inboxes Cargo owns — provision mailboxes on a sending domain, run provider warm-up and the 5→40/day send ramp, deliver with the sendEmail…

As a process F 46/100 · Will not run — References files that are not bundled: ../cargo-orchestration/SKILL.md, ../cargo/SKILL.md, ../cargo-workspace-management/SKILL.md

GeneratorInfrastructureSoftware developmentMarketingtype and topics are labelled automatically from the skill text
JSON
Technical rating
A
91/100
safety, quality, tests
Safety 60%
100
Quality 40%
77
Run on models
none yet
Process rating
F
46/100
Will not run
References files that are not bundled: ../cargo-orchestration/SKILL.md, ../cargo/SKILL.md, ../cargo-workspace-management/SKILL.md
Tools and files w 18
0
Result and completion w 14
0
Progress reporting w 2
0
the three weakest of ten parameters · all ten

How to improve

  1. The text references files that are not there: add them or drop the references.
For the model run — optional
  • Your own cases (evals/evals.json, 4–6 real requests with expected answers): the full check would then run those instead of a model-drafted suite.
  • A spec.yaml with trigger phrases and assertions — a behaviour contract for CI; `skilltest init` writes a template.

Guard findings · 0

✓ No critical or high findings

Files scanned: 8. Evidence is masked. Grey chips explain why severity was lowered.

Against the Agent Skills spec

  • warning missing-ref reference to a missing file: ../cargo-orchestration/SKILL.md
  • warning missing-ref reference to a missing file: ../cargo/SKILL.md
  • warning missing-ref reference to a missing file: ../cargo-workspace-management/SKILL.md
  • warning missing-ref reference to a missing file: ../cargo/references/prerequisites.md
  • warning missing-ref reference to a missing file: ../cargo-gtm/references/acceptable-use.md
  • warning missing-ref reference to a missing file: ../cargo-gtm/references/cost-discipline.md
  • warning missing-ref reference to a missing file: ../cargo-cdk/SKILL.md
  • warning missing-ref reference to a missing file: ../cargo/references/interaction.md
  • note frontmatter-key unknown frontmatter key "homepage"

Process rating: all ten parameters 46/100

Will not run. References files that are not bundled: ../cargo-orchestration/SKILL.md, ../cargo/SKILL.md, ../cargo-workspace-management/SKILL.md
  • 0Tools and files. 8 referenced file(s) missing: ../cargo-orchestration/SKILL.md, ../cargo/SKILL.md, ../cargo-workspace-management/SKILL.md
  • 0Result and completion. Does not say what the result is
  • 0Progress reporting. Says nothing while it works
  • 20When it triggers. No condition that starts the skill
  • 50Failures and branches. 0 branches, has a failure section
  • 70Inputs and preconditions. Inputs and preconditions are listed
  • 70Execution cost. Instruction body is 4313 tokens
  • 100Steps. 35 steps
  • 100Consistency. Name and required fields are in place
  • 100Running it twice. Mutating operations check current state
  • medium Safety rules and hard prohibitions inside a skill: they belong in the system prompt, here they protect nothing

Everything here is measured from the skill text rather than judged by a model, so the numbers are checkable. A parameter weighs more when it is a more common reason for the process to stall.

Quality signals

  • +4Description does not say when NOT to use the skill (false activations)
  • +3Description length 803: 120–800 characters recommended
  • +3Output format is not stated: the model decides each time
  • +1No license
  • +2Single-language instructions
  • +5Description quotes 12 example trigger phrases
  • +4Structure: 16 headings
  • +3Step-by-step instructions: 35 items
  • +4Has examples (11 code blocks)
  • +4Reference files are cited in the instructions (3 of 4)

Quality base 70; lint remarks subtract, signals add up to 100. Result: 77.

External checks

ClawHub: clean
This skill is a disclosed Cargo mailbox-management guide for provisioning inboxes, sending mail, and checking delivery/replies, with real-world email and billing effects clearly called out.
LLM: benign (high) · VirusTotal: · 2 Sept 2026