Weekness — Week & Calendar Utilities
Give your coding agent reliable ISO week numbers, date↔week conversion, and weekday lookups without hand-rolling calendar math in prompts.
Overview
Weekness is an MCP server for the Build phase that provides ISO week and calendar tools for date conversion, week math, and weekday lookups inside coding agents.
What is this MCP server?
- ISO week and calendar operations exposed as MCP tools over stdio
- Date conversion, week math, and weekday lookup in one server
- OCI image ghcr.io/dvdksn/weekness:1.0.0 (version 1.0.0)
- No API keys required for the published stdio/OCI package
- Lightweight utility for schedules, sprints, and reporting labels
- Server version 1.0.0
- 1 OCI package with stdio transport
- 0 required environment variables in server.json
What problem does it solve?
Agents and scripts keep getting ISO weeks, fiscal periods, and weekdays wrong when builders paste ad hoc date logic into every prompt.
Who is it for?
Solo builders who want Claude Code or Cursor to answer “what ISO week is this?” and convert dates without custom Python one-liners.
Skip if: Teams that need full calendaring, meeting booking, or timezone-heavy scheduling across organizations—use a dedicated calendar or PM integration instead.
What do I get? / Deliverables
After you register Weekness, your agent can call vetted calendar tools so schedules, reports, and filenames use consistent week and day semantics.
- Agent-callable tools for ISO week and calendar conversions
- Consistent week and weekday answers in agent-driven scripts and docs
Recommended MCP Servers
Journey fit
Calendar utilities land on the Build shelf because they are wired into agents and automation during product work, even though the same tools help planning and reporting elsewhere. Integrations is the canonical fit: Weekness is an MCP tool surface agents call from Claude Code, Cursor, or Codex instead of embedding date logic in app code.
How it compares
MCP calendar utility server, not a hosted scheduling SaaS or a one-off agent skill markdown file.
Common Questions / FAQ
Who is Weekness for?
Weekness is for indie developers and agent users who need correct ISO week and weekday math inside Claude Code, Cursor, Codex, or other MCP-capable clients.
When should I use Weekness?
Use Weekness when building automations, reports, or agent workflows that reference ISO weeks, convert between dates and weeks, or resolve weekdays without writing custom date code.
How do I add Weekness to my agent?
Add the MCP server to your agent config using the stdio transport and the OCI identifier ghcr.io/dvdksn/weekness:1.0.0, then restart the client so the calendar tools appear in the tool list.