Offense MCP
Provides security tools for AI coding agents, enabling dependency advisory audits, source inspection, and workflow analysis. It supports building DevSecOps agents that investigate findings, make authorized changes, and run tests using existing model and repository permissions.
Endpoint and access
No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.
https://offense.sh/mcpWhat you can do with it
- Audit npm/pnpm dependencies for security vulnerabilities
- Inspect source code and workflows for security issues
- Build DevSecOps agents for automated security remediation
- Check account balance and manage API keys for hosted tools
Source and maintenance
- Maintenance checked
Protocol and capabilities
- Server
- offense 0.7.0
- MCP protocol
- 2025-06-18
- Tools
- 1 advertised
- Resources
- Not advertised
- Resource templates
- Not advertised
- Prompts
- Not advertised
{
"tools": {}
}Server-provided instructions
Untrusted server output shown for inspection. It is not Koskamo guidance and is excluded from knowledge search.
Tools
1 advertised
offense.audit_dependencies — Offense dependency audit
Use Purple to audit sanitized npm/pnpm dependency metadata for known advisory matches and checked upgrade paths. Resume deferred targets with remediation.planning.next while retaining the full scan and coordinating plans across pages. Does not read source, run tests, edit files, confirm exploitability or use a model key.
{
"type": "object",
"required": [
"files"
],
"properties": {
"files": {
"type": "array",
"items": {
"type": "object",
"required": [
"path",
"content"
],
"properties": {
"path": {
"type": "string",
"maxLength": 240,
"description": "Unique relative lockfile path."
},
"content": {
"anyOf": [
{
"type": "string",
"maxLength": 2000000
},
{
"type": "object"
}
],
"description": "Sanitized lockfile document; use the installed Offense helper to prepare it."
}
},
"additionalProperties": false
},
"maxItems": 20,
"minItems": 1,
"description": "Locally sanitized npm v2/v3 or pnpm v6/v9 lockfile metadata. The server cannot read local paths. Do not send source, credentials or registry URLs."
},
"planning": {
"type": "object",
"required": [
"metadataFingerprint",
"pendingTargetIds"
],
"properties": {
"pendingTargetIds": {
"type": "array",
"items": {
"type": "string",
"pattern": "^[a-f0-9]{64}$"
},
"maxItems": 5000,
"minItems": 1,
"uniqueItems": true
},
"metadataFingerprint": {
"type": "string",
"pattern": "^[a-f0-9]{64}$"
}
},
"description": "Use remediation.planning.next unchanged with the same sanitized files to continue planning. This checks only selected planning targets; retain and merge the original full advisory report.",
"additionalProperties": false
},
"planLimit": {
"type": "integer",
"default": 3,
"maximum": 10,
"minimum": 0,
"description": "Maximum affected package/version pairs to plan in this response, highest severity first. Zero scans only. Follow remediation.planning.next for remaining targets; omitted or failed paths remain explicit blockers."
}
},
"additionalProperties": false
}{
"type": "object",
"required": [
"schemaVersion",
"capability",
"status",
"findings",
"coverage",
"remediation",
"summary",
"providers"
],
"properties": {
"status": {
"enum": [
"complete",
"partial"
]
},
"summary": {
"type": "object"
},
"coverage": {
"type": "object"
},
"findings": {
"type": "array",
"items": {
"type": "object"
}
},
"providers": {
"type": "array",
"items": {
"type": "object"
}
},
"capability": {
"const": "audit_dependencies"
},
"remediation": {
"type": "object"
},
"schemaVersion": {
"const": "offense.audit.v1"
}
}
}{
"readOnlyHint": true,
"openWorldHint": true,
"idempotentHint": true,
"destructiveHint": false
}Prompts
Not advertised
Resources
Not advertised
30-day availability
Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.
- Successful checks
- 1 of 1 (100%)
- Average latency
- 899 ms
- 95th percentile latency
- 899 ms
Maintenance history
Public check and source-refresh events. Editorial and ownership records remain private.
- · probe · passed · 899 ms · metadata changed · 1 tool(s)
Connect from your client
Each snippet registers the same endpoint; pick the client you use.
Claude Code
claude mcp add --transport http offense-mcp https://offense.sh/mcpCodex
codex mcp add offense-mcp --url https://offense.sh/mcpCursor
{
"mcpServers": {
"offense-mcp": {
"url": "https://offense.sh/mcp"
}
}
}Cline
{
"mcpServers": {
"offense-mcp": {
"type": "streamableHttp",
"url": "https://offense.sh/mcp",
"disabled": false
}
}
}VS Code
{
"servers": {
"offense-mcp": {
"type": "http",
"url": "https://offense.sh/mcp"
}
}
}Gemini CLI
gemini mcp add --transport http offense-mcp https://offense.sh/mcpClaude Desktop
{
"mcpServers": {
"offense-mcp": {
"url": "https://offense.sh/mcp"
}
}
}Windsurf
{
"mcpServers": {
"offense-mcp": {
"serverUrl": "https://offense.sh/mcp"
}
}
}Let your agent find its tools
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