Claude Code
Codex
Cursor
GitHub Copilot
Gemini CLIAbout this skill
Contains verified MeF rejection code resolution procedures (R0000-901 through R0000-905-01 with 10-day perfection-period workflows), EFIN application and annual renewal checklists, and Form 8879-CORP e-signature retention rules. C-corp electronic filing, IRS MeF XML schema validation, acknowledgment tracking (A/R/D/P ack types), mandatory e-file threshold (10-return aggregation per T.D. 9972), provider type selection (ERO vs transmitter), advertising standards, and sanction tiers. Consult when e-filing 1120 returns, diagnosing MeF rejection codes, managing EFIN credentials or renewal, preparing Form 8879-CORP for e-signature, determining mandatory e-file applicability, onboarding a firm as an authorized e-file provider, or resolving e-file provider compliance issues.
Quick start
- Copy the install prompt. Use the green button above this README.
- Send it to your agent. Paste it into your coding agent’s chat and send.
- Review the setup. Your agent checks the skill’s instructions, requirements, and installation scope.
Review, license & listing details
This is an imported listing. We haven’t certified its safety, license, or compatibility. Skills may include executable scripts.
Only SKILL.md was scanned. Supporting files and scripts were not checked. No safety grade has been assigned.
0 potential findings · Scanned 11/4/2026 · Scanner 0.2.1
Content SHA-256: 5efe75a13d0ce295047a809b41e52f0ddd92dd6cebe7d80f160199b1b917a103
About this listing
- Category
- Security
- Reported license
- MIT
- Listing language (estimated)
- English
- Review status
- Not individually reviewed
- Agent compatibility
- Atlas installation supports Claude Code, Codex, and Cursor. Skill-specific dependencies and features are checked during setup.