feat(security): add Security Guard module for attack surface defense#111
Open
MicroMilo wants to merge 2 commits into
Open
feat(security): add Security Guard module for attack surface defense#111MicroMilo wants to merge 2 commits into
MicroMilo wants to merge 2 commits into
Conversation
Add a non-blocking security defense layer protecting 4 attack surfaces: **MCP instruction sanitization** — 4-level pipeline (XML escape → length truncation → pattern detection → warning injection) applied to MCP server instructions injected into the system prompt. **MCP tool output guard** — PostToolUse hook scanning mcp__* tool outputs against configurable suspicious patterns (curl, eval, bash -c, etc.). **Web fetch guard** — PreToolUse guard wrapping web_fetch content with boundary markers to prevent prompt injection from external pages. **Annotation forgery guard** — PreToolUse guard detecting MCP tools that declare read-only annotations but have names/params suggesting mutating operations. Also adds: - User-configurable SecurityPolicy with deep merge (objects recurse, arrays concat) in ~/.pilotdeck/security-policy.json - Auto-generates commented policy template on first access - Credential detection in bash output via hook guard - Dynamic MCP instruction merging in PluginRuntimeExtensionResolver
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
添加安全防护，围绕 posthook 展开，详见 commit message