codeweb v0.5.0

Added (fewer mistakes per token)

• Day-one briefing (codeweb_brief, 24th MCP tool + scripts/brief.mjs + a SessionStart
  hook): one ~2KB page — areas with summaries, the most depended-on symbols, entry points
  (heuristic), test layout, known issues — injected automatically when a session starts in a
  mapped repo. Replaces the first 20-50k tokens of exploratory orientation with pre-computed
  answers; served in-process from the cached graph.
• Caller-reliance contracts (lib/reliance.mjs): the explain card (and therefore the
  pre-edit hook, which embeds its summary) now reads the actual call sites and says what
  callers depend on — destructured/member-accessed result fields ("callers use {timeout,
  retries} — keep those"), awaited fraction, and the argument-count range in use. Targets the
  most common breaking edit: changing a return shape a caller still destructures.
  Conservative: only call-site-line patterns count; no sites → no claim.
• Confidence calibration (extractor v10): symbols reachable from a package entrypoint
  (package.json main/module/browser/bin/exports, followed through named + star re-export
  chains) are stamped pub — "0 in-repo callers" on a public symbol now answers with
  "⚠ public API — external callers likely; renames are breaking" instead of false confidence.
  Files using dynamic dispatch (computed member calls, getattr, non-literal require, emitters)
  are recorded in meta.dynamic, and empty callers/dependents answers cite them ("absence of
  callers is weaker evidence"). Confident answers stay caveat-free — no noise.

Research

• H18-v2 prepped (paper/experiments/agent-ab2-ambient.workflow.js + agent-ab2.README.md):
  the agent A/B rerun as one funded command — v1's null was a floor effect (both arms ~0
  regressions on easy tasks), so v2 pre-registers hard tasks (graph-verified fan-in ≥ 5 /
  shape changes) and an AMBIENT treatment arm mirroring what the hooks now inject (brief +
  explain cards with reliance/caveats — context delivered, not offered). The analyzer takes
  raw/out paths so v1 results stay frozen.