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"
}

review​

Parameters​

Response​

Example​

ask​

Parameters​

Response​

Example​

code_review​

Parameters​

Response​

Example​

Resume & Career Tools​

career_fact_extractor​

Parameters​

Example​

Workflow​

cover_letter_generator​

Parameters​

Example​

creative_portfolio_resume​

Parameters​

executive_resume_writer​

Parameters​

interview_prep_generator​

Parameters​

job_description_analyzer​

Parameters​

Example​

linkedin_profile_optimizer​

Parameters​

portfolio_case_study_writer​

Parameters​

reference_list_builder​

Parameters​

resume_ats_optimizer​

Parameters​

resume_bullet_writer​

Parameters​

resume_formatter​

Parameters​

resume_quantifier​

Parameters​

resume_section_builder​

Parameters​

resume_tailor​

Parameters​

Example (with evidence map)​

recruiter_first_screen_simulation​

Parameters​

Example​

resume_version_manager​

Parameters​

tech_resume_optimizer​

Parameters​

Example​

review

Parameters

Response

Example

ask

Parameters

Response

Example

code_review

Parameters

Response

Example

Resume & Career Tools

career_fact_extractor

Parameters

Example

Workflow

cover_letter_generator

Parameters

Example

creative_portfolio_resume

Parameters

executive_resume_writer

Parameters

interview_prep_generator

Parameters

job_description_analyzer

Parameters

Example

linkedin_profile_optimizer

Parameters

portfolio_case_study_writer

Parameters

reference_list_builder

Parameters

resume_ats_optimizer

Parameters

resume_bullet_writer

Parameters

resume_formatter

Parameters

resume_quantifier

Parameters

resume_section_builder

Parameters

resume_tailor

Parameters

Example (with evidence map)

recruiter_first_screen_simulation

Parameters

Example

resume_version_manager

Parameters

tech_resume_optimizer

Parameters

Example