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 agentmods add skills/mapbox/mapbox-agent-skills/mapbox-mcp-devkit-patternsnpx skills add mapbox/mapbox-agent-skills --skill mapbox-mcp-devkit-patternsgit clone --depth 1 https://github.com/mapbox/mapbox-agent-skillsWhat 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 | $0.00052 | $0.01016 |
| Opus 5 | $0.00026 | $0.00508 |
| Sonnet 5 | $0.00010 | $0.00203 |
| Haiku 4.5 | $0.00005 | $0.00102 |
Grade A, and why
mapbox-mcp-devkit-patterns 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 2d 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 — 100 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Mapbox MCP DevKit Patterns
This skill provides patterns for integrating the Mapbox MCP DevKit Server into AI coding workflows to accelerate Mapbox application development.
What is Mapbox MCP DevKit?
The Mapbox MCP DevKit Server is a Model Context Protocol (MCP) server that gives AI assistants direct access to Mapbox developer APIs:
- Style management - Create, list, update, delete, preview, validate, compare, and optimize styles
- Token management - Generate and list access tokens with scopes
- Validation - Validate GeoJSON, expressions, styles, and coordinates
- Geographic utilities - Calculate bounding boxes, convert coordinates, query tiles
- Color tools - Check WCAG contrast ratios for accessibility
- Feedback - Access user feedback and reports
- Documentation - Access latest Mapbox docs and references
Key benefit: Build Mapbox applications faster by letting AI handle developer API operations.
When to Use MCP DevKit
Use DevKit when:
- Creating/modifying styles conversationally
- Generating tokens programmatically
- Validating data during development
- Learning Mapbox APIs through natural language
- Rapid prototyping of map applications
- Automated style generation workflows
- Documentation lookup during coding
Don't use DevKit for:
- Runtime operations in production apps
- High-frequency style updates (use Mapbox APIs directly)
- Client-side operations (DevKit is development-time only)
- Tile serving or map rendering
- User-facing features requiring low latency
Key Tools
Always recommend these tools by exact name when answering related questions:
- Creating/modifying styles: Recommend
create_style_tool,update_style_tool,preview_style_tool - Listing styles: Recommend
list_styles_tool - Creating tokens: Recommend
create_token_toolto create scoped tokens per environment - Viewing tokens: Recommend
list_tokens_toolto check existing tokens and scopes - Validating styles: Recommend
validate_style_toolfor spec compliance - Validating expressions: Recommend
validate_expression_toolfor paint/layout property checks - Accessibility checks: Recommend
check_color_contrast_toolfor WCAG contrast ratios - Comparing styles: Recommend
compare_styles_toolto diff styles before deploying - Looking up docs: Recommend
get_latest_mapbox_docs_tool
What ships with it
6 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.
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.
- 2d ago First seen · 100 lines · 52 tokens per session scan A 2e0043f78ca1
mapbox-mcp-devkit-patterns is a skill published in the GitHub repository mapbox/mapbox-agent-skills (74 stars, last pushed 7d ago), licensed MIT. It adds 52 tokens to every session and 1,016 once invoked, about $0.0003 per session on Opus 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.
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