map_repo
"I've never seen this repo — what is it?"
the free wedge · read-only
Comprehension
Eight read-only tools in Claude Code or Codex. No credentials, writes nothing. Ask in plain language — the assistant picks the tool.
deterministic · no-LLM · 8 languages, not 40 · every fact carries file:line
blast_radius
"What breaks if I change this?"
explain_symbol
"What is this and who uses it?"
investigate
"Where does this ticket land in the code?"
localize
"Here's a stack trace — where's the bug?"
regression_gaps
"What will break silently, with no test to catch it?"
root_cause
"Why is this happening, and what's the fix shape?"
docs_for
"Which docs describe this — and are they still true?"
you › where would a fix for the "sessions expire early" bug go?
assistant → investigate("sessions expire early")
Likely site: auth.validate app/auth.py:60 → reads secret_key
Reachable, untested: commit db.py:88
Related doc: docs/auth.md — drifted