Claude Tools API

The Claude MCP server exposes twenty-one tools. All tools are registered under the claude_reviewer server name (configurable in your .mcp.json).

review

Send code, plans, or diffs for structured review.

Parameters

Parameter	Type	Required	Description
content	string	Yes	The content to review (max 500KB)
context	string	No	Additional context for the reviewer

Response

interface ReviewResult {
  verdict: "APPROVED" | "NEEDS_REVISION";
  issues: ReviewIssue[];
  suggestions: string[];
}

interface ReviewIssue {
  severity: "critical" | "major" | "minor";
  description: string;
  recommendation: string;
}

Example

Input:

{
  "content": "function login(user, pass) {\n  const query = `SELECT * FROM users WHERE name='${user}' AND pass='${pass}'`;\n  return db.exec(query);\n}",
  "context": "Authentication module for the web API"
}

Output:

{
  "verdict": "NEEDS_REVISION",
  "issues": [
    {
      "severity": "critical",
      "description": "SQL injection vulnerability via string interpolation",
      "recommendation": "Use parameterized queries: db.prepare('SELECT * FROM users WHERE name=? AND pass=?').get(user, pass)"
    }
  ],
  "suggestions": [
    "Hash passwords instead of storing/comparing plaintext",
    "Add rate limiting to prevent brute-force attacks"
  ]
}

ask

Ask Claude a freeform question about code.

Parameters

Parameter	Type	Required	Description
question	string	Yes	The question to ask (max 500KB)
cwd	string	No	Working directory for file access

Response

Plain text string with Claude's response.

Example

Input:

{
  "question": "What design pattern does the server-factory.ts module use?",
  "cwd": "/path/to/project"
}

Output:

"The server-factory.ts module uses the Factory pattern. The createServer() function
acts as a factory that takes a ServerConfig object and returns a configured McpServer
instance. This centralizes server creation logic and ensures consistent configuration
across all three bridge servers (Claude, Codex, Copilot)."

code_review

Specialized tool for reviewing git diffs.

Parameters

Parameter	Type	Required	Description
diff	string	Yes	The git diff to review (max 500KB)
context	string	No	Additional context for the review

Response

Same ReviewResult structure as the review tool.

Example

Input:

{
  "diff": "diff --git a/src/auth.ts b/src/auth.ts\n--- a/src/auth.ts\n+++ b/src/auth.ts\n@@ -10,6 +10,7 @@\n+  if (!token) return null;\n   const decoded = jwt.verify(token, SECRET);",
  "context": "Adding null check for missing auth tokens"
}

---

Resume & Career Tools

All 18 tools below are also available on the Codex and Copilot servers with identical parameters. All return plain text with structured AI-generated content. For full methodology details and usage examples, see SKILLS.md and the Resume Tools Guide.

career_fact_extractor

Extract a structured, fact-ID-tagged database of career facts from any source material. Use before resume_tailor to enforce truthful, evidence-mapped tailoring.

Parameters

Parameter	Type	Required	Description
source_material	string	Yes	Resume, LinkedIn profile, brag doc, performance reviews, project notes — any source of career information (max 100KB)
additional_context	string	No	Target role, industry, or any other relevant context

Example

{
  "source_material": "Jane Smith, Senior PM at Acme 2021–2024. Led checkout redesign, cart abandonment dropped from 68% to 41%...",
  "additional_context": "Targeting Staff PM roles at Series B startups"
}

Workflow

Run career_fact_extractor first, then pass its output as the career_facts parameter to resume_tailor for fully evidence-mapped tailoring.

cover_letter_generator

Generate a personalized cover letter with match analysis, alternative hooks, and interview talking points.

Parameters

Parameter	Type	Required	Description
resume	string	Yes	Candidate's resume or experience summary
job_description	string	Yes	Full job posting text
company_name	string	Yes	Name of the target company
role_title	string	Yes	Title of the role being applied for
additional_context	string	No	Mutual connections, company news, personal motivation

Example

{
  "resume": "Jane Smith, Senior PM, 8 years...",
  "job_description": "We're hiring a Senior PM to lead growth...",
  "company_name": "Acme Corp",
  "role_title": "Senior Product Manager, Growth",
  "additional_context": "I noticed Acme just raised a Series B."
}

creative_portfolio_resume

Generate both an ATS-compatible and a fully designed resume for creative professionals.

Parameters

Parameter	Type	Required	Description
experience	string	Yes	Work history and project experience
skills	string	Yes	Creative and technical skills
field	string	Yes	Creative field (e.g. graphic_design, ux_design, photography, writing, marketing)
target_role	string	No	Specific role being targeted
portfolio_url	string	No	URL of the candidate's portfolio
additional_context	string	No	Any additional information

executive_resume_writer

Create a 2-3 page executive resume focused on leadership brand and strategic transformation story.

Parameters

Parameter	Type	Required	Description
experience	string	Yes	Career history including company context and scope
current_level	string	Yes	One of: c_suite, vp, director, other_executive
target_role	string	No	Target role or title
industry	string	No	Target industry
board_experience	string	No	Board and advisory roles
additional_context	string	No	Any additional information

interview_prep_generator

Generate STAR-method interview prep with predicted questions ranked by probability.

Parameters

Parameter	Type	Required	Description
resume	string	Yes	Candidate's resume
job_description	string	Yes	Job posting text
company_name	string	Yes	Target company
role_title	string	Yes	Role being interviewed for
interview_format	string	No	e.g. behavioral, technical, panel, case study
additional_context	string	No	Any additional information

job_description_analyzer

Extract requirements, score match against a resume, detect red flags, and generate application recommendations.

Parameters

Parameter	Type	Required	Description
job_description	string	Yes	Full job posting text
resume	string	No	Candidate's resume (enables match scoring)
additional_context	string	No	Any additional information

Example

{
  "job_description": "We are looking for a Staff Software Engineer...",
  "resume": "John Doe, Software Engineer, 6 years..."
}

linkedin_profile_optimizer

Rewrite a LinkedIn profile for recruiter visibility using LinkedIn's search algorithm best practices.

Parameters

Parameter	Type	Required	Description
current_profile	string	Yes	Current LinkedIn profile content (headline, about, experience)
target_role	string	No	Role type being targeted
industry	string	No	Target industry
resume	string	No	Resume for reference
additional_context	string	No	Any additional information

portfolio_case_study_writer

Write a structured portfolio case study in the six-section framework (Overview, Problem, Process, Solution, Results, Learnings).

Parameters

Parameter	Type	Required	Description
project_description	string	Yes	Project context including your role and constraints
outcomes	string	Yes	Results, metrics, and impact achieved
field	string	Yes	One of: product_management, design, engineering, marketing, other
depth	string	No	essential (~700 words) or deep_dive (~2500 words). Default: essential
additional_context	string	No	Any additional information

reference_list_builder

Build a reference strategy with formatted list, briefing email templates, and talking points per reference.

Parameters

Parameter	Type	Required	Description
references	string	Yes	List of potential references with their details
target_role	string	Yes	Role being applied for
company_name	string	Yes	Target company
resume_highlights	string	No	Key achievements for references to emphasize
additional_context	string	No	Any additional information

resume_ats_optimizer

Optimize a resume to pass ATS screening via keyword matching and formatting compliance fixes.

Parameters

Parameter	Type	Required	Description
resume	string	Yes	Current resume text
job_description	string	Yes	Job posting to optimize against
industry	string	No	Industry context (tech, finance, healthcare, marketing)
additional_context	string	No	Any additional information

resume_bullet_writer

Transform weak, duty-focused bullets into achievement-focused statements using the X-Y-Z formula.

Parameters

Parameter	Type	Required	Description
bullets	string	Yes	One or more bullets to transform (one per line)
role_context	string	Yes	Role, company, and industry context
metrics_available	string	No	Any data or numbers that can be incorporated
additional_context	string	No	Any additional information

resume_formatter

Audit and fix resume formatting for ATS compliance and human readability.

Parameters

Parameter	Type	Required	Description
resume	string	Yes	Resume text to format
career_level	string	Yes	One of: entry_level, mid_level, senior_executive
additional_context	string	No	Any additional information

resume_quantifier

Add data-driven metrics to every bullet using six metric categories and estimation methodology.

Parameters

Parameter	Type	Required	Description
bullets	string	Yes	Bullets to quantify (one per line)
role_context	string	Yes	Role and industry context
data_available	string	No	Any raw data or numbers to draw from
additional_context	string	No	Any additional information

resume_section_builder

Build targeted resume sections (summary, skills, experience, education) tailored to career stage.

Parameters

Parameter	Type	Required	Description
experience	string	Yes	Work history
skills	string	Yes	Skills and competencies
career_stage	string	Yes	One of: entry_level, mid_career, senior, executive, career_changer
target_role	string	Yes	Role being targeted
education	string	No	Education history
additional_sections	string	No	Projects, volunteer work, certifications, etc.
additional_context	string	No	Any additional information

resume_tailor

Tailor a master resume to a specific job posting by selecting and emphasizing relevant experience. When career_facts is provided, every tailored bullet maps to a source fact ID — producing an evidence map, a list of removed unsupported claims, and questions for missing proof.

Parameters

Parameter	Type	Required	Description
resume	string	Yes	Master resume or current resume
job_description	string	Yes	Full job posting text
company_name	string	Yes	Target company
role_title	string	Yes	Role being applied for
career_facts	string	No	Fact-ID-tagged output from career_fact_extractor — enables evidence map and removed-claims output
additional_context	string	No	Any additional information

Example (with evidence map)

{
  "resume": "[master resume text]",
  "job_description": "[full job posting]",
  "company_name": "Stripe",
  "role_title": "Engineering Manager",
  "career_facts": "[output from career_fact_extractor]"
}

recruiter_first_screen_simulation

Simulate a skeptical hiring manager's 45-second resume screen. Returns a Yes/Maybe/No decision, scores across 6 dimensions, and exact text to rewrite before applying.

Parameters

Parameter	Type	Required	Description
resume	string	Yes	The resume to screen (max 50KB)
job_description	string	Yes	The job description for the role (max 20KB)
seniority_level	string	No	Expected seniority level for calibration (e.g. senior, staff, director)
additional_context	string	No	Any additional context for the simulation

Example

{
  "resume": "[full resume text]",
  "job_description": "[full job posting text]",
  "seniority_level": "senior"
}

resume_version_manager

Organize and maintain multiple resume versions using a master resume strategy and application tracker.

Parameters

Parameter	Type	Required	Description
master_resume	string	No	Current resume or experience (to build the master from)
existing_versions	string	No	Description of existing resume files/versions
target_roles	string	No	Target roles and industries
job_applications	string	No	Current or recent job applications
additional_context	string	No	Any additional information

tech_resume_optimizer

Optimize resumes for software engineering, data, DevOps, and technical PM roles.

Parameters

Parameter	Type	Required	Description
resume	string	Yes	Current resume
role_type	string	Yes	e.g. software_engineer, data_engineer, devops_sre, technical_pm
job_description	string	No	Target job posting (enables ATS keyword analysis)
career_level	string	No	e.g. junior, mid, senior, staff, principal
additional_context	string	No	Any additional information

Example

{
  "resume": "[full resume text]",
  "role_type": "software_engineer",
  "job_description": "[full JD text]",
  "career_level": "senior"
}