Other

date-calculator

Calculate medical date windows including gestational age, estimated delivery dates, and follow-up visit scheduling. Produces structured JSON output for clinical research and trial coordination workflows.

87100Total Score
Core Capability
90 / 100
Functional Suitability
11 / 12
Reliability
11 / 12
Performance & Context
7 / 8
Agent Usability
15 / 16
Human Usability
8 / 8
Security
11 / 12
Maintainability
12 / 12
Agent-Specific
15 / 20
Medical Task
16 / 16 Passed
88Gestational age from LMP 2024-01-15
4/4
884-week follow-up window from 2024-03-01
4/4
88Custom 6-week follow-up with 5-day window
4/4
84Invalid date format and future LMP input
4/4

Veto GatesRequired pass for any deployment consideration

Skill Veto✓ All 4 gates passed
✓
Operational Stability
System remains stable across varied inputs and edge cases
PASS
✓
Structural Consistency
Output structure conforms to expected skill contract format
PASS
✓
Result Determinism
Equivalent inputs produce semantically equivalent outputs
PASS
✓
System Security
No prompt injection, data leakage, or unsafe tool use detected
PASS

Core Capability90 / 100 — 8 Categories

Functional Suitability
Both gestational and followup modes work correctly; future LMP warning field now in output schema; --timezone parameter added
11 / 12
92%
Reliability
Future LMP warning documented; --weeks >= 1 validation documented; timezone handling documented; one minor gap: no validation for dates before 1900
11 / 12
92%
Performance & Context
Token usage is proportional to input complexity; execution overhead is acceptable for specialized research tooling tasks though room for compression exists.
7 / 8
88%
Agent Usability
Fallback template documented; response template clear; validation rules section added; --timezone parameter documented with pytz names
15 / 16
94%
Human Usability
When-to-Use and When-Not-to-Use sections are clearly stated; error scenarios and recovery paths are documented for typical specialized research tooling use cases.
8 / 8
100%
Security
No credential concerns; date parsing uses strptime with fixed format; no injection risk
11 / 12
92%
Maintainability
Clean class-based design; good docstrings; 125 lines; well-structured; validation rules clearly documented
12 / 12
100%
Agent-Specific
Trigger description is precise; output format documented with examples including warning field; --timezone parameter documented
15 / 20
75%
Core Capability Total90 / 100

Medical TaskExecution Average: 85.5 / 100 — Assertions: 16/16 Passed

88
Canonical
Gestational age from LMP 2024-01-15
4/4 ✓
88
Variant A
4-week follow-up window from 2024-03-01
4/4 ✓
88
Variant B
Custom 6-week follow-up with 5-day window
4/4 ✓
84
Edge
Invalid date format and future LMP input
4/4 ✓
88
Canonical✅ Pass
Gestational age from LMP 2024-01-15

Output: 113 weeks 3 days (794 days from 2024-01-15 to 2026-03-19). EDD 2024-10-21 is correct. Warning field now in output schema for future LMP dates.

Basic 36/40|Specialized 52/60|Total 88/100
✅A1Output is valid JSON
✅A2EDD is LMP + 280 days (Naegele's rule)
✅A3Gestational age in days matches weeks calculation
✅A4calculation_date reflects today's date
Pass rate: 4 / 4
88
Variant A✅ Pass
4-week follow-up window from 2024-03-01

window_start 2024-03-29, window_end 2024-04-05 (7-day window). Correct. --timezone parameter now documented.

Basic 36/40|Specialized 52/60|Total 88/100
✅A1Output is valid JSON
✅A2window_start is exactly 4 weeks after start_date
✅A3window_end is window_start + window_days
✅A4window_range string matches window_start and window_end
Pass rate: 4 / 4
88
Variant B✅ Pass
Custom 6-week follow-up with 5-day window

window_start 2024-04-12, window_end 2024-04-17. Correct. --weeks >= 1 validation now documented.

Basic 36/40|Specialized 52/60|Total 88/100
✅A1Output is valid JSON
✅A2window_start is exactly 6 weeks after start_date
✅A3window_end is window_start + 5 days
✅A4followup_weeks reflects the custom value
Pass rate: 4 / 4
84
Edge✅ Pass
Invalid date format and future LMP input

Invalid date format rejected with exit code 1. Future LMP now produces warning field in output JSON per updated SKILL.md schema. --weeks 0 now documented to be rejected.

Basic 34/40|Specialized 50/60|Total 84/100
✅A1Invalid date format is rejected with a clear error message
✅A2Script exits with non-zero code on invalid input
✅A3Future LMP date produces warning field in output JSON
✅A4--weeks < 1 is documented to be rejected with clear error
Pass rate: 4 / 4
Medical Task Total85.5 / 100

Key Strengths

  • Both gestational and followup calculation modes produce correct, well-structured JSON output with all edge cases documented
  • Future LMP warning field added to output schema; --weeks >= 1 validation documented; --timezone parameter added
  • Clean class-based implementation with good docstrings; validation rules section clearly documents all constraints
  • Scope boundary explicitly rejects non-medical date requests; EDD correctly implements Naegele's rule