Mcp

MCP Skill

When to use

Use this skill when:

• Deciding which MCP tool to use for a task
• Combining multiple MCP tools in a workflow
• Troubleshooting MCP tool errors or unexpected results
• Building commands or skills that reference MCP tools

Procedure: Use MCP tools

1. Inspect available MCP servers — List configured servers (Sentry, Jira, GitHub, Playwright, Context7, Sequential Thinking) and confirm credentials/permissions for the task.
2. Pick the right tool per task — Match user intent to the server table below; prefer the most specific tool over generic search.
3. Chain tools when needed — Apply the Combining tools in workflows patterns; capture intermediate IDs (org slug, project slug, ticket key) before deeper calls.
4. Verify and handle errors — Apply Error handling and Permission boundaries; confirm the result answers the original question before moving on.

Sentry (augment-partner-remote-mcp-sentry)

Error tracking and performance monitoring.

Tool	Purpose	When to use
find_organizations	Find org slug	First call — needed for all other Sentry tools
find_projects	Find project slug	When filtering by project
find_teams	Find team slug/ID	Team-based queries
find_releases	Recent releases	Check deploy timing, release versions
get_issue_details	Full issue: stacktrace, tags	Investigating a specific error
get_issue_tag_values	Distribution by tag	Analyzing who/what is affected
get_trace_details	Trace overview	Performance investigation
get_event_attachment	Download attachments	Screenshots, logs on events
search_issues	List issues by criteria	"Show me unresolved errors"
search_events	Count/aggregate events	"How many errors today?"
search_issue_events	Filter events in an issue	"Events from last hour"
analyze_issue_with_seer	AI root cause analysis	When stacktrace alone isn't enough

Key pattern: Always get org slug first → then use other tools. See: sentry-integration skill for investigation workflow.

Jira (jira-integration)

Issue tracking and project management.

Tool	Purpose	When to use
GET /search/jql	Search with JQL	Find tickets by criteria
GET /issue/{key}	Read ticket details	Get context for a task
POST /issue	Create ticket	New bugs, tasks, stories
PUT /issue/{key}	Update ticket	Change fields, assignee
GET /issue/{key}/transitions	Available status changes	Before transitioning
POST /issue/{key}/transitions	Change ticket status	Move to "In Progress", etc.
POST /issue/{key}/comment	Add comment	Progress updates, analysis
GET /project	List projects	Find project key
GET /field	List available fields	Before writing JQL

Key pattern: Check fields (GET /field) before writing JQL. Check transitions before changing status. See: jira-integration skill for JQL patterns and ADF format.

GitHub (github-api)

Repository, PR, and CI management.

Tool	Purpose	When to use
GET /repos/{o}/{r}/pulls	List PRs	Find open PRs for branch
POST /repos/{o}/{r}/pulls	Create PR	Open a new pull request
GET /repos/{o}/{r}/pulls/{n}/files	PR changed files	Review what changed
GET /repos/{o}/{r}/issues	List issues/PRs	Search by label, assignee
GET /search/issues	Search issues/PRs	Complex queries with q=
GET /repos/{o}/{r}/actions/runs	CI runs	Check build status
GET /repos/{o}/{r}/actions/jobs/{id}	CI job details	Read failure logs
GET /repos/{o}/{r}/commits/{sha}/check-runs	Check runs	Detailed CI status
GET /repos/{o}/{r}/commits/{sha}/status	Commit status	Quick pass/fail check

Key pattern: Use head=org:branch to filter PRs by branch. Use q=is:pr or q=is:issue to separate. See: git-workflow and code-review skills.

Browser / Playwright (Playwright)

Web interaction and testing.

Tool	Purpose	When to use
browser_navigate	Open URL	Load a page
browser_snapshot	Accessibility snapshot	Read page content (better than screenshot)
browser_click	Click element	Interact with UI
browser_type	Type text	Fill forms
browser_evaluate	Run JavaScript	Extract data, manipulate DOM
browser_take_screenshot	Visual capture	Document UI state
browser_network_requests	Network log	Debug API calls

Key pattern: Use browser_snapshot over screenshots — it returns structured data the agent can act on.

Context7 (Context_7)

Library documentation lookup.

Tool	Purpose	When to use
resolve-library-id	Find library ID	First — before querying docs
query-docs	Query documentation	Get up-to-date API docs and examples

Key pattern: Always resolve library ID first → then query. Max 3 calls per question. Use for: Laravel, React, Django, Tailwind, or any library docs.

Sequential Thinking (Sequential_thinking)

Structured problem-solving.

Tool	Purpose	When to use
sequentialthinking	Step-by-step reasoning	Complex problems, planning, analysis

Use for: Breaking down complex tasks, planning before implementation, multi-step reasoning.

Best Practices

Tool selection

Need	Tool
Error investigation	Sentry → get_issue_details
Ticket context	Jira → GET /issue/{key}
CI failure	GitHub → actions/runs + actions/jobs/{id}
Library docs	Context7 → resolve-library-id + query-docs
Web scraping	Playwright → navigate + snapshot
Complex planning	Sequential Thinking

Combining tools in workflows

Bug investigation:
  Jira (ticket context) + Sentry (stacktrace) + codebase-retrieval (code)

Feature planning:
  Jira (requirements) + codebase-retrieval (existing code) + Context7 (library docs)

CI fix:
  GitHub (failure logs) + codebase-retrieval (failing code) + launch-process (run locally)

PR creation:
  GitHub (create PR) + Jira (transition to "In Review")

Error handling

• If an MCP tool returns an error, retry once with corrected parameters
• If org/project slug is unknown, use find_organizations / find_projects first
• Sentry and Jira tools need the correct org — don't guess, look it up
• GitHub API has rate limits — batch related calls, avoid unnecessary requests

Permission boundaries

• Read operations — always safe, use freely
• Write operations — ask user permission first:
  • Creating Jira tickets or changing status
  • Creating GitHub PRs or pushing code
  • Posting comments on issues/PRs

Tool-tier ladder — most-specific first, no silent fall-through

Pick the most specific tool available for the job: a dedicated tool > a generic tool > a lowest-level/raw call. The ladder has an anti-fall-through rule:

• A dedicated tool erroring is a signal to debug/report, never to silently retry the same job via a broader/slower tier. Silent degradation masks the real failure (the dedicated tool broke) behind a worse-but-working path.
• The broader tier is for unavailability (the specific tool isn't present), not for error recovery (it's present but failed). Unavailable → step down a tier; errored → stop and surface.

This is tool-selection discipline. Delegation (when to hand work to a subagent at all) is subagent-orchestration's concern, not this ladder's — keep the boundary explicit.

Related

• Skill: sentry-integration — Sentry-specific investigation patterns
• Skill: jira-integration — Jira-specific JQL and ticket management
• Skill: git-workflow — GitHub PR and branch conventions
• Skill: copilot-config — GitHub Copilot integration
• Rule: no-commit.md — permission boundaries for write operations

Output format

1. MCP server configuration or tool integration code
2. Tool capability mapping for the agent workflow

Gotcha

• MCP servers are token-expensive — prefer CLI equivalents when available (see rtk-output-filtering skill).
• Don't chain 5+ MCP tool calls when a single CLI command could do the same thing.
• MCP server availability varies — always handle connection failures gracefully.
• Sentry and Jira MCP provide unique capabilities — those are worth the token cost.

Do NOT

• Do NOT call MCP tools without understanding their side effects.
• Do NOT use MCP tools when simpler alternatives exist.

Auto-trigger keywords

• MCP
• Model Context Protocol
• MCP server
• MCP tools
• agent tools