XcodeBuildMCP is an MCP server and command-line tool that gives coding agents tools for building and working on iOS and macOS projects. It supports workflows involving Xcode and xcodebuild, including project builds and device-related operations. Its catalogue add-ons provide agent instructions and connections for using the MCP server and CLI.
Borrowing it
Nothing to install: this file belongs to getsentry/XcodeBuildMCP. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/getsentry/XcodeBuildMCP/main/.agents/skills/xcodebuildmcp-runtime-boundary-review/SKILL.mdgit clone --depth 1 https://github.com/getsentry/XcodeBuildMCPWrote 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/getsentry/xcodebuildmcp/xcodebuildmcp-runtime-boundary-review)<a href="https://agentmods.dev/skills/getsentry/xcodebuildmcp/xcodebuildmcp-runtime-boundary-review"><img src="https://agentmods.dev/badge/skills/getsentry/xcodebuildmcp/xcodebuildmcp-runtime-boundary-review/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/getsentry/xcodebuildmcp/xcodebuildmcp-runtime-boundary-review"><img src="https://agentmods.dev/badge/skills/getsentry/xcodebuildmcp/xcodebuildmcp-runtime-boundary-review.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium MCP Rug Pull · line 41 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
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 | $0.00040 | $0.00332 |
| Opus 5.5 | $0.00016 | $0.00133 |
| Sonnet 5.5 | $0.00008 | $0.00066 |
| Haiku 4.5 | $0.00004 | $0.00033 |
Grade A, and why
xcodebuildmcp-runtime-boundary-review 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 2mo 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.
What it actually says
XcodeBuildMCP Runtime Boundary Review
Review guardrails for runtime routing and invocation boundaries.
Review scope
- Review-only by default.
- Do not edit product code unless the user explicitly requests implementation changes.
Files to inspect
src/runtime/tool-catalog.tssrc/runtime/tool-invoker.tssrc/runtime/types.tssrc/cli/**src/daemon/**manifests/tools/*.yamlmanifests/workflows/*.yamlxcodebuildmcp.com/app/docs/_content/architecture-runtime-boundaries.mdxxcodebuildmcp.com/app/docs/_content/architecture-manifest-visibility.mdx
Guardrails
- MCP, CLI, and daemon paths use shared handlers.
- Stateful CLI tools route through daemon only when
routing.statefulrequires it. - Do not treat daemon as a third manifest availability mode.
- Dynamic Xcode IDE tools keep daemon routing semantics.
- Catalog filtering respects availability, workflow selection, and predicates.
- Runtime failures surface via runtime/rendering status and fragments.
- Avoid silent fallbacks and parallel invocation paths.
Validation
npm test -- src/runtime/__tests__/tool-invoker.test.tsnpm run typechecknpx skill-check .agents/skills/xcodebuildmcp-runtime-boundary-review
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.
- 2mo ago First seen · 42 lines · 40 tokens per session scan A 2c29118daea8
xcodebuildmcp-runtime-boundary-review is a skill published in the GitHub repository getsentry/XcodeBuildMCP (6,506 stars, last pushed 7d ago), licensed MIT. It adds 40 tokens to every session and 332 once invoked, about $0.0002 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.
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Review a GitLab merge request, inspect changes and discussions, or prepare and post explicitly requested review feedback. Use for GitLab MRs and review follow-ups, not GitHub pull requests or automatic approval/merge.
pr-reviewer
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knowledge-audit
Review and clean up stored memories — find duplicates, contradictions, stale entries, and consolidate.
review-guidelines
Additional code review guidelines specific to this codebase. Auto-loaded by the review agent during PR reviews to enforce project conventions.