Is macOS Calendar and Reminders safe to use?

macOS Calendar and Reminders has an HVTrust score of 54.5/100 (Grade C), ranked #624 of 1320 tracked AI agent projects. This score reflects verifiable supply-chain integrity, transparency, maintenance, and adoption signals.

What is the trust score for macOS Calendar and Reminders?

macOS Calendar and Reminders scores 54.5/100 on HVTracker's evidence-weighted HVTrust scale. It has 36 GitHub stars and is categorized under MCP Servers.

macOS Calendar and Reminders

PsychQuant/che-ical-mcp

macOS Calendar & Reminders MCP server (29 tools) — native Swift EventKit for Claude Desktop & Code. Events + reminders C

MCP Servers Swift Grade C Listed MIT

54.5/100

Rank #624 of 1320

Compare macOS Calendar and Reminders

How does it stack up against its MCP Servers neighbours?

Pick any agent to compare →

Thin or incomplete trust evidence. Review carefully before production use.

Open compare tool Suggest correction

Listing state

Listed

Evidence coverage

Grade C · 2/5 signals

Last push

2026-08-31 · 4d ago

Recent change

Scorecard +11

Is macOS Calendar and Reminders safe? macOS Calendar and Reminders scores 54.5/100 (Grade C), ranked #624 of 1320 tracked open-source AI agent projects, on evidence coverage C (2 of 5 independent signal types). The public evidence: no package-provenance attestation found; OSSF Scorecard rates its supply-chain practices 5.4/10; 43% of recent commits are signed; last pushed 2026-08-31. Every point is earned from checkable signals — never paid placement. How scoring works →

Ranked neighbours in MCP Servers

#301 Funplay Unity MCP — 54.6 (C) → #302 Cr7258 Elasticsearch MCP Server — 54.6 (C) → #304 App Store Connect MCP — 54.5 (C) → #305 Blockrun MCP — 54.5 (C) →

Quick Trust Read

What Would Improve It

Publish package provenance or release attestations for stronger supply-chain evidence.

Recent Changes

2026-09-03

Scorecard Added

OSSF Scorecard: 5.4/10

2026-09-03

Grade Changed

Trust grade D → C

2026-09-03

Rank Moved

Rank rose 632 spots (#1247 → #615)

Maintainer Checklist

Raise Scorecard signals Current OSSF Scorecard is 5.4/10. Tighten the weakest checks to improve public safety evidence.

Publish provenance Add package provenance or release attestations so users can verify where shipped artifacts came from.

Increase signed commits Raise the share of verified-signed commits to make maintainer identity and release history easier to trust.

Compare with another agent Get email alerts for macOS Calendar and Reminders View MCP Servers Report missing data

52.1

Activity sub-score · out of 100

#303

In MCP Servers

How to read this: HVTrust (0–100) weighs supply-chain signals (provenance, OSSF Scorecard, signed commits, open license) alongside real-world adoption. Grade C reflects the trust score band: A ≥ 80, B ≥ 65, C ≥ 50, D < 50. Evidence coverage C is separate — it grades how many independent signal types back the score (2 of 5), so a high score on thin evidence stays visible. Full methodology →

Rank Trend

2026-08-11 2026-09-04

Activity & Reach

Stars

Forks

Last Push

2026-08-31

4 days ago

Commits (4 wk)

Downloads (7d)

—

HN mentions (30d)

—

Open Issues

Rank Change

▼9

was #615

Analysis

HVTrust Dimensions vs MCP Servers

54.5 / 100 · 100.0% confidence

macOS Calendar and Reminders MCP Servers average (778 agents)

Safety / Integrity50% OSSF Scorecard · 30% provenance · 20% signed commits

8.9 / 25

0.6 below avg 9.5

Identity / Provenance60% listing status · 40% build provenance

10.8 / 18

2.6 below avg 13.4

Transparency50% declared license · 50% OSSF Scorecard

13.1 / 17

1.3 above avg 11.8

Maintenance60% last-push freshness · 40% commit activity

16.2 / 20

4.0 above avg 12.2

AdoptionLog-scaled stars · package downloads

3.8 / 20

2.4 below avg 6.2

Activity Inputs

52.1 / 100

StarsRepository reach

9.4 / 30

FreshnessLast push recency

24.4 / 25

ActivityRecent commits

13.9 / 25

CommunityFork signal

4.4 / 20

Supply Chain Trust

Package Provenance

None

No package attestations found

OSSF Scorecard

5.4 / 10

OpenSSF Scorecard · scanned Sep 3, 2026

Signed Commits

43%

of last 100 commits verified

Binary-Artifacts 10

Branch-Protection 3

CI-Tests 10

CII-Best-Practices 0

Code-Review 0

Contributors 6

Dangerous-Workflow 10

Dependency-Update-Tool 10

Fuzzing 0

License 10

Maintained 10

Packaging -1

Pinned-Dependencies 0

SAST 10

Security-Policy 0

Signed-Releases 0

Token-Permissions 0

Vulnerabilities 10

Is macOS Calendar and Reminders safe?

Public trust evidence for macOS Calendar and Reminders is thin: several supply-chain signals are missing or weak. This does not mean the project is unsafe — it means an outside observer cannot easily verify the usual integrity checks. Treat with extra scrutiny.

Does macOS Calendar and Reminders publish package provenance?

No published build provenance is currently detected for macOS Calendar and Reminders. This is common for open-source projects but means consumers cannot independently verify that the package on the registry matches the GitHub source.

Does macOS Calendar and Reminders have an OpenSSF Scorecard?

macOS Calendar and Reminders has an OpenSSF Scorecard score of 5.4/10. The Scorecard checks for branch protection, signed releases, dependency updates, fuzzing, code review, and other supply-chain hygiene items. See the full check breakdown on this page.

Is macOS Calendar and Reminders actively maintained?

Actively maintained. The repository was pushed to within the last 4 day(s).

What license does macOS Calendar and Reminders use?

macOS Calendar and Reminders ships under MIT. A declared, OSI-approved license is one of the transparency signals HVTrust scores.

Are macOS Calendar and Reminders's commits signed?

43% of the last 100 commits to macOS Calendar and Reminders are verified-signed (GPG, SSH, S/MIME, or GitHub's signing flow). Signed commits help confirm that code was authored by who the commit claims.

Not a safety endorsement. HVTracker describes what public signals show, not whether a project is safe for your use case. Run your own security review before adopting in production.

AI agent surface

MCP, providers, tool surface

Scored in HVTrust

These runtime-trust fields — detected from public repo docs and manifests — contribute a bounded adjustment to this project's HVTrust score alongside supply-chain evidence. The exact values each field can add or subtract are documented in the methodology → Compare this surface across every listed agent in the capability matrix →

MCP Server Support

medium confidence

Implemented

macOS Calendar and Reminders appears to expose MCP server capabilities.

Detailed evidence is not shown in the public view.

External Service Dependencies

medium confidence

1 detected

Public provider/service dependencies detected.

Anthropic

Credential signal: No explicit API-key/config marker detected.

Tool / Plugin Surface

high confidence

Declared

Declared plugin/integration surface detected.

Detailed evidence is not shown in the public view.

Package Provenance Drift

N/A

No package source configured

Detailed evidence is not shown in the public view.

MCP signal live
External deps live
Tool / plugin surface live
Package provenance drift live

Maintain macOS Calendar and Reminders?

For maintainers

HVTrust scores macOS Calendar and Reminders from public signals only — we never contact maintainers first. If a signal is wrong, stale, or missing (provenance you publish, a Scorecard you run, signed releases), tell us and we'll review it. Corrections are public and tracked on GitHub.

Submit a correction → Add the trust badge

Reputation Timeline

Signal history

2026-09-03

Scorecard Added

OSSF Scorecard: 5.4/10

2026-09-03

Grade Changed

Trust grade D → C

2026-09-03

Rank Moved

Rank rose 632 spots (#1247 → #615)

2026-09-03

HVTrust Changed

HVTrust up 32.1pts (22.4 → 54.5)

2026-09-02

Rank Moved

Rank dropped 33 spots (#1214 → #1247)

2026-09-01

Rank Moved

Rank dropped 30 spots (#1184 → #1214)

2026-08-31

Rank Moved

Rank rose 62 spots (#1246 → #1184)

2026-08-31

HVTrust Changed

HVTrust up 3.9pts (18.6 → 22.5)

2026-08-31

Activity Score Changed

Activity score up 21pts (32 → 53)

2026-08-30

Rank Moved

Rank dropped 13 spots (#1233 → #1246)

2026-08-29

Rank Moved

Rank dropped 17 spots (#1216 → #1233)

2026-08-28

Rank Moved

Rank dropped 16 spots (#1200 → #1216)

2026-08-27

Rank Moved

Rank dropped 13 spots (#1187 → #1200)

2026-08-26

Rank Moved

Rank dropped 44 spots (#1143 → #1187)

2026-08-16

Rank Moved

Rank dropped 26 spots (#1107 → #1133)

2026-08-10

Rank Moved

Rank dropped 68 spots (#1040 → #1108)

2026-08-09

Activity Score Changed

Activity score down 11pts (45 → 34)

2026-08-08

Newly Listed

First tracked at rank #958

GitHub →

Embed Badge Badge guide for maintainers →

For maintainers

Markdown:
            [![HVTrust](https://hvtracker.net/badge/macos-calendar-and-reminders.svg)](https://hvtracker.net/agents/macos-calendar-and-reminders)
            
HTML:
            <a href="https://hvtracker.net/agents/macos-calendar-and-reminders"><img src="https://hvtracker.net/badge/macos-calendar-and-reminders.svg" alt="HVTrust"></a>

Other agents in MCP Servers

Data sources
GitHub REST API (repo, commits, stars, forks, license) · OpenSSF Scorecard CLI
Each agent's signals refresh once daily across 6 staggered batches. Methodology v4.3 · Raw JSON