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3GPP release structure, versioning, TSG rounds, and release freeze concept. Use when understanding 3GPP release numbering, TSG round schedules, or finding specifications in releases.
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Comprehensive Python development skill covering coding standards, CLI development, linting, testing, debugging, refactoring, code review, auditing, documentation, project planning, and bulk operations. Use when writing, reviewing, refactoring, debugging, or documenting Python code; configuring linters; setting up CLI tools; planning features; performing code audits; checking Python antipatterns, forbidden methods, or bad style; or handling bulk operations (10+ files) that benefit from batch workflows instead of per-file iteration.
Use this skill whenever the user wants to do anything with PDF files. This includes reading or extracting text/tables from PDFs, combining or merging multiple PDFs into one, splitting PDFs apart, rotating pages, adding watermarks, creating new PDFs, filling PDF forms, encrypting/decrypting PDFs, extracting images, and OCR on scanned PDFs to make them searchable. If the user mentions a .pdf file or asks to produce one, use this skill.
ITU-T-specific contribution document drafting: template structure, header table fields, style-name mapping, equation conventions, and batch workflows. Use when preparing or editing ITU-T contribution .docx files (C-series or TD-series). Delegates formatting rules to sdo-docx-formatting and officecli operations to sdo-docx-operations.
Cross-platform operational guardrails and deterministic helper scripts for officecli OOXML edits on .docx files. Use when editing .docx with officecli raw-set, fixing tab run issues, inserting bookmarks or field codes (SEQ/REF), validating XPath targeting, or preventing destructive raw-set mistakes. Applies across all SDOs -- concrete style names provided by the per-SDO drafting skill.
General 3GPP organization overview, partnerships, scope, and fundamental concepts. Use when working with 3GPP data structures, understanding 3GPP hierarchy, or needing context about 3GPP as an organization.
Change Request procedure, workflow, status tracking, CR database, and step-by-step instructions. Use when working with 3GPP Change Requests to modify specifications, understanding CR lifecycle, or querying CR status.
| name | 3gpp-releases |
| description | 3GPP release structure, versioning, TSG rounds, and release freeze concept. Use when understanding 3GPP release numbering, TSG round schedules, or finding specifications in releases. |
Official Release Timeline: https://www.3gpp.org/specifications-technologies/releases
3GPP specifications are published four times a year following quarterly Technical Specification Group (TSG) plenary meetings. Each Release represents a set of frozen technical specifications.
3GPP uses a version numbering scheme:
21.456 (Series number + spec number)Examples:
A TSG round is a quarterly plenary meeting where specifications are made available. Each TSG round produces:
Four TSG plenaries per year:
Example 2025 Schedule:
https://www.3gpp.org/ftp/Specs/<YYYY>-<MM>/
TSG Round Examples:
https://www.3gpp.org/ftp/Specs/2025-12/https://www.3gpp.org/ftp/Specs/2025-12/SpecslistexTSG/TSG110.htmhttps://www.3gpp.org/ftp/Specs/2025-12/SpecslistexTSG/TSG110.htmOlder releases that are "closed" - no further Change Requests accepted.
# FTP directory for Release 18
base_url = "https://www.3gpp.org/ftp/Specs/2018-12/"
# List all spec files
spec_list = requests.get(base_url).text.split('\n')
TS numbers follow pattern: <series>.<spec>, where <series> is 21, 22, 23, etc.
Examples:
3gpp-working-groups - For understanding which TSGs produce which specs3gpp-specifications - For spec file format and numbering3gpp-change-request - For modifications to specs in releases