Lenspr
Builds a dependency graph of your Python and TypeScript codebase so Claude can see what breaks before making changes. Exposes 60+ tools across navigation, impact analysis, architecture rules, and cross-language linking. lens_context returns source, callers, callees, and tests in one shot instead of seven grep calls. lens_check_impact shows blast radius with severity ratings. lens_vibecheck scores codebase health across test coverage, dead code, and circular imports. Connects frontend HTTP calls to backend routes, database tables, Docker services, and env vars in a single graph. Runs locally via Jedi, Pyright, and tree-sitter. Reach for this when you're tired of AI agents breaking dependencies three files away because they only see one file at a time.
- tools
- 60
- transport
- STDIO
- last updated
- Feb 23, 2026
Tools
60 toolsPublic tool metadata for what this MCP can expose to an agent.
lens_contextOne call returns source code, who calls it, what it calls, and related tests.
One call returns source code, who calls it, what it calls, and related tests.
No parameter schema in public metadata yet.
lens_check_impactBefore any modification, the AI sees the blast radius.
Before any modification, the AI sees the blast radius.
No parameter schema in public metadata yet.
lens_vibecheckHealth score across 6 dimensions, tracking whether the codebase is improving or degrading over time.
Health score across 6 dimensions, tracking whether the codebase is improving or degrading over time.
No parameter schema in public metadata yet.
lens_get_node
No parameter schema in public metadata yet.
lens_search
No parameter schema in public metadata yet.
lens_grep
No parameter schema in public metadata yet.
lens_find_usages
No parameter schema in public metadata yet.
lens_get_structure
No parameter schema in public metadata yet.
lens_list_nodes
No parameter schema in public metadata yet.
lens_get_connections
No parameter schema in public metadata yet.
lens_update_node
No parameter schema in public metadata yet.
lens_patch_node
No parameter schema in public metadata yet.
lens_add_node
No parameter schema in public metadata yet.
lens_delete_node
No parameter schema in public metadata yet.
lens_rename
No parameter schema in public metadata yet.
lens_batch
No parameter schema in public metadata yet.
lens_validate_change
No parameter schema in public metadata yet.
lens_health
No parameter schema in public metadata yet.
lens_dead_code
No parameter schema in public metadata yet.
lens_dependencies
No parameter schema in public metadata yet.
lens_diff
No parameter schema in public metadata yet.
lens_nfr_check
No parameter schema in public metadata yet.
lens_test_coverage
No parameter schema in public metadata yet.
lens_security_scan
No parameter schema in public metadata yet.
lens_dep_audit
No parameter schema in public metadata yet.
lens_fix_plan
No parameter schema in public metadata yet.
lens_generate_test_skeleton
No parameter schema in public metadata yet.
lens_arch_rule_add
No parameter schema in public metadata yet.
lens_arch_rule_list
No parameter schema in public metadata yet.
lens_arch_rule_delete
No parameter schema in public metadata yet.
lens_arch_check
No parameter schema in public metadata yet.
lens_class_metrics
No parameter schema in public metadata yet.
lens_project_metrics
No parameter schema in public metadata yet.
lens_largest_classes
No parameter schema in public metadata yet.
lens_compare_classes
No parameter schema in public metadata yet.
lens_components
No parameter schema in public metadata yet.
lens_blame
No parameter schema in public metadata yet.
lens_node_history
No parameter schema in public metadata yet.
lens_commit_scope
No parameter schema in public metadata yet.
lens_recent_changes
No parameter schema in public metadata yet.
lens_api_map
No parameter schema in public metadata yet.
lens_db_map
No parameter schema in public metadata yet.
lens_env_map
No parameter schema in public metadata yet.
lens_ffi_map
No parameter schema in public metadata yet.
lens_infra_map
No parameter schema in public metadata yet.
lens_run_tests
No parameter schema in public metadata yet.
lens_trace
No parameter schema in public metadata yet.
lens_trace_stats
No parameter schema in public metadata yet.
lens_annotate
No parameter schema in public metadata yet.
lens_save_annotation
No parameter schema in public metadata yet.
lens_batch_save_annotations
No parameter schema in public metadata yet.
lens_annotate_batch
No parameter schema in public metadata yet.
lens_annotation_stats
No parameter schema in public metadata yet.
lens_session_write
No parameter schema in public metadata yet.
lens_session_read
No parameter schema in public metadata yet.
lens_session_handoff
No parameter schema in public metadata yet.
lens_resume
No parameter schema in public metadata yet.
lens_hotspots
No parameter schema in public metadata yet.
lens_node_timeline
No parameter schema in public metadata yet.
lens_explain
No parameter schema in public metadata yet.
Sponsors
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LensPR
Code intelligence for AI coding agents. Your AI sees dependencies before making changes.
Alpha (0.1.x) — works on real projects, used daily by the author. Expect rough edges.
AI assistants edit your code one file at a time. They don't see dependencies. They grep, read, guess — and break things three files away.
LensPR builds a dependency graph of your codebase and gives your AI structural understanding before it changes anything.
Quick Start
Requires Python 3.11+, macOS or Linux. For TypeScript/JS projects, also Node.js 18+.
pip install 'lenspr[all]'
lenspr init .
lenspr setup .
Restart your IDE. Done. Your AI now has lens_* tools.
Add
.lens/to your.gitignore— the graph is local and rebuilt from source.
What It Does
"What depends on this function?"
One call returns source code, who calls it, what it calls, and related tests:
> lens_context("auth.login_handler")
Details
- Repository
- github.com/kyrylopr/lenspr
- Package
lenspr- Transport
- STDIO
- Registry
- MCP registry, active