How do I install axiom-ios-data?

Run `npx skills add https://github.com/charleswiltgen/axiom --skill axiom-ios-data` in your terminal. You need to have run `npx skills init` once in your project first.

Which agent frameworks does axiom-ios-data support?

axiom-ios-data works with any agent framework supported by the Skills registry, including Claude Code, Cursor, GitHub Copilot, Cline, Codex, and Gemini CLI.

Is axiom-ios-data free to use?

Yes. axiom-ios-data is free to install and use. It is available from the open explainx.ai skill registry published by charleswiltgen.

Where can I read ratings and reviews for axiom-ios-data?

Community ratings and review text appear on this explainx.ai skill page below the description. Reviews use a 1–5 scale and may include short written feedback from signed-in members.

How do I install axiom-ios-data?

Run `npx skills add https://github.com/charleswiltgen/axiom --skill axiom-ios-data` in your terminal. You need to have run `npx skills init` once in your project first.

Which agent frameworks does axiom-ios-data support?

axiom-ios-data works with any agent framework supported by the Skills registry, including Claude Code, Cursor, GitHub Copilot, Cline, Codex, and Gemini CLI.

Is axiom-ios-data free to use?

Yes. axiom-ios-data is free to install and use. It is available from the open explainx.ai skill registry published by charleswiltgen.

Where can I read ratings and reviews for axiom-ios-data?

Community ratings and review text appear on this explainx.ai skill page below the description. Reviews use a 1–5 scale and may include short written feedback from signed-in members.

How do I install axiom-ios-data?

Run `npx skills add https://github.com/charleswiltgen/axiom --skill axiom-ios-data` in your terminal. You need to have run `npx skills init` once in your project first.

Which agent frameworks does axiom-ios-data support?

axiom-ios-data works with any agent framework supported by the Skills registry, including Claude Code, Cursor, GitHub Copilot, Cline, Codex, and Gemini CLI.

Is axiom-ios-data free to use?

Yes. axiom-ios-data is free to install and use. It is available from the open explainx.ai skill registry published by charleswiltgen.

Where can I read ratings and reviews for axiom-ios-data?

Community ratings and review text appear on this explainx.ai skill page below the description. Reviews use a 1–5 scale and may include short written feedback from signed-in members.

How do I install axiom-ios-data?

Run `npx skills add https://github.com/charleswiltgen/axiom --skill axiom-ios-data` in your terminal. You need to have run `npx skills init` once in your project first.

Which agent frameworks does axiom-ios-data support?

axiom-ios-data works with any agent framework supported by the Skills registry, including Claude Code, Cursor, GitHub Copilot, Cline, Codex, and Gemini CLI.

Is axiom-ios-data free to use?

Yes. axiom-ios-data is free to install and use. It is available from the open explainx.ai skill registry published by charleswiltgen.

Where can I read ratings and reviews for axiom-ios-data?

Community ratings and review text appear on this explainx.ai skill page below the description. Reviews use a 1–5 scale and may include short written feedback from signed-in members.

How do I install axiom-ios-data?

Run `npx skills add https://github.com/charleswiltgen/axiom --skill axiom-ios-data` in your terminal. You need to have run `npx skills init` once in your project first.

Which agent frameworks does axiom-ios-data support?

axiom-ios-data works with any agent framework supported by the Skills registry, including Claude Code, Cursor, GitHub Copilot, Cline, Codex, and Gemini CLI.

Is axiom-ios-data free to use?

Yes. axiom-ios-data is free to install and use. It is available from the open explainx.ai skill registry published by charleswiltgen.

Where can I read ratings and reviews for axiom-ios-data?

Community ratings and review text appear on this explainx.ai skill page below the description. Reviews use a 1–5 scale and may include short written feedback from signed-in members.

How do I install axiom-ios-data?

Run `npx skills add https://github.com/charleswiltgen/axiom --skill axiom-ios-data` in your terminal. You need to have run `npx skills init` once in your project first.

Which agent frameworks does axiom-ios-data support?

axiom-ios-data works with any agent framework supported by the Skills registry, including Claude Code, Cursor, GitHub Copilot, Cline, Codex, and Gemini CLI.

Is axiom-ios-data free to use?

Yes. axiom-ios-data is free to install and use. It is available from the open explainx.ai skill registry published by charleswiltgen.

Where can I read ratings and reviews for axiom-ios-data?

Community ratings and review text appear on this explainx.ai skill page below the description. Reviews use a 1–5 scale and may include short written feedback from signed-in members.

How do I install axiom-ios-data?

Run `npx skills add https://github.com/charleswiltgen/axiom --skill axiom-ios-data` in your terminal. You need to have run `npx skills init` once in your project first.

Which agent frameworks does axiom-ios-data support?

axiom-ios-data works with any agent framework supported by the Skills registry, including Claude Code, Cursor, GitHub Copilot, Cline, Codex, and Gemini CLI.

Is axiom-ios-data free to use?

Yes. axiom-ios-data is free to install and use. It is available from the open explainx.ai skill registry published by charleswiltgen.

Where can I read ratings and reviews for axiom-ios-data?

Community ratings and review text appear on this explainx.ai skill page below the description. Reviews use a 1–5 scale and may include short written feedback from signed-in members.

How do I install axiom-ios-data?

Run `npx skills add https://github.com/charleswiltgen/axiom --skill axiom-ios-data` in your terminal. You need to have run `npx skills init` once in your project first.

Which agent frameworks does axiom-ios-data support?

axiom-ios-data works with any agent framework supported by the Skills registry, including Claude Code, Cursor, GitHub Copilot, Cline, Codex, and Gemini CLI.

Is axiom-ios-data free to use?

Yes. axiom-ios-data is free to install and use. It is available from the open explainx.ai skill registry published by charleswiltgen.

Where can I read ratings and reviews for axiom-ios-data?

Community ratings and review text appear on this explainx.ai skill page below the description. Reviews use a 1–5 scale and may include short written feedback from signed-in members.

How do I install axiom-ios-data?

Run `npx skills add https://github.com/charleswiltgen/axiom --skill axiom-ios-data` in your terminal. You need to have run `npx skills init` once in your project first.

Which agent frameworks does axiom-ios-data support?

axiom-ios-data works with any agent framework supported by the Skills registry, including Claude Code, Cursor, GitHub Copilot, Cline, Codex, and Gemini CLI.

Is axiom-ios-data free to use?

Yes. axiom-ios-data is free to install and use. It is available from the open explainx.ai skill registry published by charleswiltgen.

Where can I read ratings and reviews for axiom-ios-data?

Community ratings and review text appear on this explainx.ai skill page below the description. Reviews use a 1–5 scale and may include short written feedback from signed-in members.

How do I install axiom-ios-data?

Run `npx skills add https://github.com/charleswiltgen/axiom --skill axiom-ios-data` in your terminal. You need to have run `npx skills init` once in your project first.

Which agent frameworks does axiom-ios-data support?

axiom-ios-data works with any agent framework supported by the Skills registry, including Claude Code, Cursor, GitHub Copilot, Cline, Codex, and Gemini CLI.

Is axiom-ios-data free to use?

Yes. axiom-ios-data is free to install and use. It is available from the open explainx.ai skill registry published by charleswiltgen.

Where can I read ratings and reviews for axiom-ios-data?

Community ratings and review text appear on this explainx.ai skill page below the description. Reviews use a 1–5 scale and may include short written feedback from signed-in members.

How do I install axiom-ios-data?

Run `npx skills add https://github.com/charleswiltgen/axiom --skill axiom-ios-data` in your terminal. You need to have run `npx skills init` once in your project first.

Productivity

axiom-ios-data▌

charleswiltgen/axiom · updated Apr 8, 2026

MDX-style export adds YAML metadata + attribution linking explainx.ai and this canonical listing URL.

$npx skills add https://github.com/charleswiltgen/axiom --skill axiom-ios-data

0 commentsdiscussion

summary

You MUST use this skill for ANY data persistence, database, axiom-storage, CloudKit, or serialization work.

skill.md

iOS Data & Persistence Router

You MUST use this skill for ANY data persistence, database, axiom-storage, CloudKit, or serialization work.

When to Use

Use this router when working with:

Databases (SwiftData, Core Data, GRDB, SQLiteData)
Schema migrations
CloudKit sync
File storage (iCloud Drive, local storage)
Data serialization (Codable, JSON)
Storage strategy decisions
Keychain / secure credential storage
Encryption, signing, key management (CryptoKit)

Routing Logic

SwiftData

Working with SwiftData → /skill axiom-swiftdata Schema migration → /skill axiom-swiftdata-migration Migration issues → /skill axiom-swiftdata-migration-diag Migrating from Realm → /skill axiom-realm-migration-ref SwiftData vs SQLiteData → /skill axiom-sqlitedata-migration

Other Databases

GRDB queries → /skill axiom-grdb SQLiteData → /skill axiom-sqlitedata Advanced SQLiteData → /skill axiom-sqlitedata-ref Core Data patterns → /skill axiom-core-data Core Data issues → /skill axiom-core-data-diag

Migrations

Database migration safety → /skill axiom-database-migration (critical - prevents data loss)

Serialization

Codable issues → /skill axiom-codable

Cloud Storage

Cloud sync patterns → /skill axiom-cloud-sync CloudKit → /skill axiom-cloudkit-ref iCloud Drive → /skill axiom-icloud-drive-ref Cloud sync errors → /skill axiom-cloud-sync-diag

Keychain & Encryption

Keychain / secure credential storage → /skill axiom-keychain Keychain errors → /skill axiom-keychain-diag Keychain API reference → /skill axiom-keychain-ref Encryption / signing / key management → /skill axiom-cryptokit CryptoKit API reference → /skill axiom-cryptokit-ref

File Storage

Storage strategy → /skill axiom-storage Storage issues → /skill axiom-storage-diag Storage management → /skill axiom-storage-management-ref File protection → /skill axiom-file-protection-ref

tvOS Storage

tvOS data persistence → /skill axiom-tvos (CRITICAL: no persistent local storage on tvOS) tvOS + CloudKit → /skill axiom-sqlitedata (recommended: SyncEngine as persistent store)

Automated Scanning

Core Data audit → Launch core-data-auditor agent or /axiom:audit core-data (migration risks, thread-confinement, N+1 queries, production data loss) Codable audit → Launch codable-auditor agent or /axiom:audit codable (try? swallowing errors, JSONSerialization, date handling) iCloud audit → Launch icloud-auditor agent or /axiom:audit icloud (entitlement checks, file coordination, CloudKit anti-patterns) Storage audit → Launch storage-auditor agent or /axiom:audit storage (wrong file locations, missing backup exclusions, data loss risks)

Decision Tree

SwiftData? → swiftdata, swiftdata-migration
Core Data? → core-data, core-data-diag
GRDB? → grdb
SQLiteData? → sqlitedata, sqlitedata-ref
ANY schema migration? → database-migration (ALWAYS — prevents data loss)
Realm migration? → realm-migration-ref
SwiftData vs SQLiteData? → sqlitedata-migration
Cloud sync architecture? → cloud-sync
CloudKit? → cloudkit-ref
iCloud Drive? → icloud-drive-ref
Cloud sync errors? → cloud-sync-diag
Codable/JSON serialization? → codable
File storage strategy? → storage, storage-diag, storage-management-ref
File protection? → file-protection-ref
Keychain / storing tokens, passwords, secrets securely? → keychain, keychain-diag, keychain-ref
SecItem errors (errSecDuplicateItem, errSecItemNotFound, errSecInteractionNotAllowed)? → keychain-diag
Encryption, signing, Secure Enclave, CryptoKit? → cryptokit, cryptokit-ref
Quantum-secure cryptography, HPKE, ML-KEM? → cryptokit
Want Core Data safety scan? → core-data-auditor (Agent)
Want Codable anti-pattern scan? → codable-auditor (Agent)
Want iCloud sync audit? → icloud-auditor (Agent)
Want storage location audit? → storage-auditor (Agent)
tvOS data persistence? → axiom-tvos (CRITICAL: no persistent local storage) + axiom-sqlitedata (CloudKit SyncEngine)

Anti-Rationalization

Thought	Reality
"Just adding a column, no migration needed"	Schema changes without migration crash users. database-migration prevents data loss.
"I'll handle the migration manually"	Manual migrations miss edge cases. database-migration covers rollback and testing.
"Simple query, I don't need the skill"	Query patterns prevent N+1 and thread-safety issues. The skill has copy-paste solutions.
"CloudKit sync is straightforward"	CloudKit has 15+ failure modes. cloud-sync-diag diagnoses them systematically.
"I know Codable well enough"	Codable has silent data loss traps (try? swallows errors). codable skill prevents production bugs.
"I'll use local storage on tvOS"	tvOS has NO persistent local storage. System deletes Caches at any time. axiom-tvos explains the iCloud-first pattern.
"UserDefaults is fine for this token"	UserDefaults is unencrypted, backed up to iCloud, and visible to MDM profiles. One audit catches it. keychain stores tokens securely.
"I'll encrypt it myself with CommonCrypto"	CryptoKit replaced CommonCrypto's buffer-management nightmares with one-line APIs. cryptokit prevents misuse.

Critical Pattern: Migrations

ALWAYS invoke /skill axiom-database-migration when adding/modifying database columns.

This prevents:

"FOREIGN KEY constraint failed" errors
"no such column" crashes
Data loss from unsafe migrations

Example Invocations

User: "I need to add a column to my SwiftData model" → Invoke: /skill axiom-database-migration (critical - prevents data loss)

User: "How do I query SwiftData with complex filters?" → Invoke: /skill axiom-swiftdata

User: "CloudKit sync isn't working" → Invoke: /skill axiom-cloud-sync-diag

User: "Should I use SwiftData or SQLiteData?" → Invoke: /skill axiom-sqlitedata-migration

User: "Check my Core Data code for safety issues" → Invoke: core-data-auditor agent

User: "Scan for Codable anti-patterns before release" → Invoke: codable-auditor agent

User: "Audit my iCloud sync implementation" → Invoke: icloud-auditor agent

User: "Check if my files are stored in the right locations" → Invoke: storage-auditor agent

User: "How do I persist data on tvOS?" → Invoke: /skill axiom-tvos + /skill axiom-sqlitedata

User: "My tvOS app loses data between launches" → Invoke: /skill axiom-tvos

User: "How do I store an auth token securely?" → Invoke: /skill axiom-keychain

User: "errSecDuplicateItem but I checked and the item doesn't exist" → Invoke: /skill axiom-keychain-diag

User: "How do I encrypt data with AES in Swift?" → Invoke: /skill axiom-cryptokit

User: "I need to sign data with the Secure Enclave" → Invoke: /skill axiom-cryptokit

User: "What's ML-KEM and should I use it?" → Invoke: /skill axiom-cryptokit

how to use axiom-ios-data

How to use axiom-ios-data on Cursor

AI-first code editor with Composer

Prerequisites

Before installing skills in Cursor, ensure your development environment meets these requirements:

›Cursor installed and configured on your development machine
›Node.js version 16.0+ with npm package manager (verify with node --version)
›Active project directory or workspace where you want to add axiom-ios-data

Execute installation command

Execute the skills CLI command in your project's root directory to begin installation:

$npx skills add https://github.com/charleswiltgen/axiom --skill axiom-ios-data

The skills CLI fetches axiom-ios-data from GitHub repository charleswiltgen/axiom and configures it for Cursor.

Select Cursor when prompted

The CLI will show a list of available agents. Use arrow keys to navigate and space to select Cursor:

◆ Which agents do you want to install to?

│

│ ── Universal (.agents/skills) ── always included ────

│ • Amp

│ • Antigravity

│ • Cline

│ • Codex

│ ●Cursor(selected)

│ • Cursor

│ • Windsurf

Verify installation

Confirm successful installation by checking the skill directory location:

.cursor/skills/axiom-ios-data

Reload or restart Cursor to activate axiom-ios-data. Access the skill through slash commands (e.g., /axiom-ios-data) or your agent's skill management interface.

⚠

Security & Verification Notice

We perform automated surface-level scans (Gen AI Scanner, Socket, Snyk) during installation. These checks detect common vulnerabilities but do not guarantee complete security. Always review skill source code and verify the publisher's reputation before production use.

Skills execute code in your development environment. Always verify the publisher's identity, review recent commits, and test in isolated environments before production deployment.

Additional Resources

›View source code on GitHub ›Skills CLI documentation ›Learn more about Cursor ›What are agent skills?

List & Monetize Your Skill

Submit your Claude Code skill and start earning

GET_STARTED →

Use Cases▌

User Story & Requirements Generation

Create detailed user stories, acceptance criteria, and feature specs

Example

Generate user stories for 'password reset feature' with acceptance criteria, edge cases, and test scenarios

✓

Reduce spec writing time by 50%, ensure comprehensive coverage

Competitive Analysis

Research competitors, compare features, identify gaps

Example

Analyze 5 competitor products, create feature comparison matrix, suggest differentiation opportunities

✓

Complete competitive research in 2 hours instead of 2 days

Roadmap Prioritization

Evaluate features using frameworks (RICE, ICE, Kano) and create prioritized backlogs

Example

Score 20 feature ideas using RICE framework, generate prioritized roadmap with rationale

✓

Make data-driven prioritization decisions faster

Stakeholder Communication

Draft PRDs, status updates, and stakeholder presentations

Example

Create executive summary of Q3 roadmap, monthly progress report, feature launch announcement

✓

Save 3-5 hours/week on communication overhead

Implementation Guide▌

Prerequisites

›Claude Desktop or compatible AI client
›Access to product documentation and roadmap tools (Jira, Notion, etc.)
›Understanding of product management frameworks (RICE, Jobs-to-be-Done, etc.)
›Stakeholder contact information and communication channels

Time Estimate

30-60 minutes to see productivity improvements

Installation Steps

1.Install product management skill
2.Start with user story generation for known feature
3.Progress to competitive analysis: research 2-3 competitors
4.Use for roadmap prioritization: apply RICE/ICE scoring
5.Draft stakeholder communications and refine based on feedback
6.Build template library for recurring PM tasks
7.Share effective prompts with product team

Common Pitfalls

⚠Not validating competitive research—verify facts before sharing
⚠Accepting user stories without involving engineering team
⚠Over-relying on frameworks without qualitative judgment
⚠Not customizing outputs to company culture and communication style
⚠Skipping stakeholder validation of generated requirements

Best Practices▌

✓ Do

+Validate research and competitive analysis with real data
+Collaborate with engineering when generating technical requirements
+Customize frameworks and templates to your company context
+Use skill for first drafts, refine with stakeholder input
+Document successful prompt patterns for PM tasks
+Combine AI efficiency with human judgment and intuition

✗ Don't

−Don't publish competitive analysis without fact-checking
−Don't finalize user stories without engineering review
−Don't make prioritization decisions solely on AI scoring
−Don't skip customer validation of generated requirements
−Don't ignore company-specific context and culture

💡 Pro Tips

★Provide context: company goals, constraints, customer feedback
★Ask for alternatives: 'Show 3 ways to prioritize this roadmap'
★Request stakeholder-specific formatting: 'Executive summary vs. engineering spec'
★Use skill for 70% generation + 30% customization to company needs

When to Use This▌

✓ Use When

Use for user story writing, competitive research, roadmap prioritization, stakeholder communication, and PRD drafting. Best for reducing repetitive documentation and research work.

✗ Avoid When

Avoid for strategic product vision (requires deep customer empathy), pricing decisions (needs market and financial expertise), or when face-to-face customer discovery is more valuable than speed.

Learning Path▌

1Basic: user stories, feature specs, status updates
2Intermediate: competitive analysis, prioritization frameworks, PRDs
3Advanced: product strategy, go-to-market planning, OKR setting
4Expert: product vision, market positioning, business model innovation

Discussion

Product Hunt–style comments (not star reviews)

No comments yet — start the thread.

general reviews

Ratings

4.8★★★★★51 reviews

★★★★★Chaitanya Patil· Dec 28, 2024
Keeps context tight: axiom-ios-data is the kind of skill you can hand to a new teammate without a long onboarding doc.
★★★★★Yusuf Ghosh· Dec 20, 2024
axiom-ios-data is among the better-maintained entries we tried; worth keeping pinned for repeat workflows.
★★★★★Kofi Tandon· Dec 16, 2024
axiom-ios-data fits our agent workflows well — practical, well scoped, and easy to wire into existing repos.
★★★★★Meera Abbas· Dec 16, 2024
axiom-ios-data has been reliable in day-to-day use. Documentation quality is above average for community skills.
★★★★★Pratham Ware· Dec 8, 2024
axiom-ios-data fits our agent workflows well — practical, well scoped, and easy to wire into existing repos.
★★★★★Aditi Johnson· Dec 8, 2024
Keeps context tight: axiom-ios-data is the kind of skill you can hand to a new teammate without a long onboarding doc.
★★★★★Benjamin Rao· Nov 27, 2024
axiom-ios-data has been reliable in day-to-day use. Documentation quality is above average for community skills.
★★★★★Piyush G· Nov 19, 2024
axiom-ios-data has been reliable in day-to-day use. Documentation quality is above average for community skills.
★★★★★Aarav Shah· Nov 11, 2024
Solid pick for teams standardizing on skills: axiom-ios-data is focused, and the summary matches what you get after install.
★★★★★Yuki Diallo· Nov 7, 2024
Keeps context tight: axiom-ios-data is the kind of skill you can hand to a new teammate without a long onboarding doc.

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