SKILL.md
Inbox Placement Monitor
Post-send placement telemetry: where mail actually landed per mailbox provider (inbox vs spam vs promotions from a seed-list test), the domain/IP reputation trend from Gmail Postmaster Tools and Microsoft SNDS, and the send-over-send delta with named regressions — delivered as a per-provider placement read plus a reusable SEND S (Sender-integrity / Deliverability) placement snapshot, with each number labeled Measured / User-provided / Estimated. This is the after half of SEND-S: deliverability-qa verifies the signal before a send (auth pre-flight, static reputation, one placement test); this skill tracks what happened after it and how reputation moves across sends. Scope guard: this skill tracks post-send placement + reputation trend and hands off a SEND-S placement snapshot; it does NOT run the S1 SPF/DKIM/DMARC auth pre-flight (that is deliverability-qa) and does NOT compute the profile-weighted EQS or enforce the S1/S2/N1/D1 vetoes (that is email-quality-auditor). Build/trend the telemetry here; let the gate render the verdict.
Quick Start
Track inbox placement for [sending domain] after my last send. Here is my seed-list test (inbox/spam/promotions per provider) and my Gmail Postmaster + Microsoft SNDS export: [paste/path].
Trend my sender reputation over the last [N] sends and flag any placement regression. Profile: [promotional / retention / cold-outbound / newsletter]. Prior baseline: [paste/path].
Did placement drop after my last campaign? Compare this seed test against the prior one and tell me which provider regressed and by how much.