Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add Siddhu7007/screen-time-api-agent-skill --skill screen-time-api-engineergit clone --depth 1 https://github.com/Siddhu7007/screen-time-api-agent-skillWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/siddhu7007/screen-time-api-agent-skill/screen-time-api-engineer)<a href="https://agentmods.dev/skills/siddhu7007/screen-time-api-agent-skill/screen-time-api-engineer"><img src="https://agentmods.dev/badge/skills/siddhu7007/screen-time-api-agent-skill/screen-time-api-engineer/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/siddhu7007/screen-time-api-agent-skill/screen-time-api-engineer"><img src="https://agentmods.dev/badge/skills/siddhu7007/screen-time-api-agent-skill/screen-time-api-engineer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00079 | $0.01143 |
| Opus 5.5 | $0.00032 | $0.00457 |
| Sonnet 5.5 | $0.00016 | $0.00229 |
| Haiku 4.5 | $0.00008 | $0.00114 |
Grade A, and why
screen-time-api-engineer scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 16d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 88 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Screen Time API Engineer
Use this skill to implement and harden Screen Time API apps with a docs-first evidence model.
Rules
- Use this evidence order for decisions:
- Canonical Apple docs and WWDC
- Local SDK interfaces/headers
- Project-observed implementations (Project Alpha/Project Beta)
- Field notes (forums/medium)
- If sources conflict, prefer canonical + SDK behavior.
- Mark uncertain conclusions as inference and include a caveat.
SDK Baseline
- Evidence re-verified against the iOS 27.0 SDK (Xcode 27.0, build 27A266a) on 2026-10-21.
- iOS 26.2 to 26.5 added Screen Time APIs: picker title, data access (EU only), shield submenus, token refresh, store lifecycle. iOS 27.0 added none.
- Gate any API newer than the app's deployment target with
#availableand state the iOS version it needs.
Quick Start Workflow
- Identify user goal category.
- Open matching references from
references/guides. - Cross-check critical API claims in
references/evidence. - If implementation quality or regressions matter, use
references/rundowns. - Produce output with explicit source/confidence labeling.
Goal to Reference Map
- Entitlements, signing, distribution approval:
references/guides/02-authorization-setup.mdreferences/guides/19-release-and-app-review-checklist.md
- Family activity picker and token handling:
references/guides/03-familycontrols-selection-and-token-model.mdreferences/guides/04-displaying-activity-labels-and-real-app-icons.md
- Shield policy and store behavior:
references/guides/05-managedsettings-enforcement-patterns.mdreferences/guides/06-web-blocking-and-webdomain-policy.md
- Custom shield UI/action:
references/guides/07-managedsettingsui-custom-shield-systems.mdreferences/guides/08-shield-actions-and-response-strategies.md
- Scheduling and monitor callbacks:
references/guides/09-deviceactivity-scheduling-thresholds-and-errors.mdreferences/guides/10-deviceactivity-monitor-extension-playbook.md
- Usage analytics reporting:
references/guides/11-deviceactivity-report-analytics-architecture.md
- Reading usage data in the host app (iOS 26.4+, EU only):
references/guides/02-authorization-setup.mdreferences/guides/11-deviceactivity-report-analytics-architecture.md
- Web usage control/reporting via ScreenTime framework:
references/guides/12-screentime-framework-web-usage-reporting.md
- Onboarding and permission UX:
references/guides/13-onboarding-and-permission-ui-blueprints.md
- End-to-end implementation reference:
references/guides/14-app-and-website-blocking-reference-implementation.md
- Project deep dives and comparative hardening:
references/guides/15-project-alpha-implementation-analysis.mdreferences/guides/16-project-beta-implementation-analysis.mdreferences/rundowns/12-cross-project-rundown.md
- Bug prevention, testing, and preflight:
references/guides/17-hardening-checklist-bug-prevention.mdreferences/guides/18-testing-matrix-device-only-edge-cases.mdreferences/guides/21-preflight-rundown.md
What ships with it
36 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- agents/openai.yaml 366 B
- references/evidence/00-source-url-inventory.md 28 KB
- references/evidence/01-familycontrols-sdk-signatures.md 5.2 KB
- references/evidence/02-managedsettings-sdk-signatures.md 4.7 KB
- references/evidence/03-managedsettingsui-sdk-signatures.md 2.5 KB
- references/evidence/04-deviceactivity-sdk-signatures.md 3.7 KB
- references/evidence/05-deviceactivity-report-sdk-signatures.md 2.1 KB
- references/evidence/06-screentime-framework-headers.md 1.8 KB
- references/evidence/07-claim-reconciliation.md 5.0 KB
- references/guides/00-overview-and-mental-model.md 2.8 KB
- references/guides/01-framework-boundaries-and-extension-lifecycle.md 1.9 KB
- references/guides/02-authorization-setup.md 5.0 KB
- references/guides/03-familycontrols-selection-and-token-model.md 3.3 KB
- references/guides/04-displaying-activity-labels-and-real-app-icons.md 2.0 KB
- references/guides/05-managedsettings-enforcement-patterns.md 3.2 KB
- references/guides/06-web-blocking-and-webdomain-policy.md 1.8 KB
- references/guides/07-managedsettingsui-custom-shield-systems.md 2.5 KB
- references/guides/08-shield-actions-and-response-strategies.md 2.4 KB
- references/guides/09-deviceactivity-scheduling-thresholds-and-errors.md 2.1 KB
- references/guides/10-deviceactivity-monitor-extension-playbook.md 1.5 KB
- references/guides/11-deviceactivity-report-analytics-architecture.md 3.5 KB
- references/guides/12-screentime-framework-web-usage-reporting.md 1.6 KB
- references/guides/13-onboarding-and-permission-ui-blueprints.md 1.6 KB
- references/guides/14-app-and-website-blocking-reference-implementation.md 1.7 KB
- references/guides/15-project-alpha-implementation-analysis.md 2.0 KB
- references/guides/16-project-beta-implementation-analysis.md 2.0 KB
- references/guides/17-hardening-checklist-bug-prevention.md 1.9 KB
- references/guides/18-testing-matrix-device-only-edge-cases.md 1.6 KB
- references/guides/19-release-and-app-review-checklist.md 1.9 KB
- references/guides/20-source-index-and-confidence-matrix.md 15 KB
- references/guides/21-preflight-rundown.md 1.4 KB
- references/rundowns/10-project-alpha-rundown.md 3.5 KB
- references/rundowns/11-project-beta-rundown.md 2.9 KB
- references/rundowns/12-cross-project-rundown.md 2.3 KB
- scripts/check_required_sections.sh 589 B runs code
- scripts/check_source_coverage.py 848 B runs code
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 16d ago Changed · +8 lines 545d9a8e2326
- 2mo ago First seen · 80 lines · 79 tokens per session scan A 98bad1764f9c
screen-time-api-engineer is a skill published in the GitHub repository Siddhu7007/screen-time-api-agent-skill (24 stars, last pushed 16d ago), licensed MIT. It adds 79 tokens to every session and 1,143 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
screen-time-api-engineer compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| screen-time-api-engineerSiddhu7007/screen-time-api-agent-skill | Skill | 24 | 16d ago | MIT | A | 79 | Codex |
| workflow-auditTerryc21/workflow-audit | Skill | 59 | 18d ago | Apache-2.0 | A | 59 | Claude Code |
| swift-expertpersonamanagmentlayer/pcl | Skill | 44 | 11d ago | Apache-2.0 | A | 76 | Claude Code |
| ui-enhancer-radarTerryc21/radar-suite | Skill | 20 | 18d ago | Apache-2.0 | A | 148 | Claude Code |
| ui-path-radarTerryc21/radar-suite | Skill | 20 | 18d ago | Apache-2.0 | A | 86 | Claude Code |
| capstone-radarTerryc21/radar-suite | Skill | 20 | 18d ago | Apache-2.0 | A | 91 | Claude Code |
| vgs-collect-ios-guideverygoodsecurity/vgs-collect-ios | Skill | 23 | 18d ago | MIT | A | 45 | Claude Code, Codex |