Agents routinely ignore the advisory "run graphify query first" nudge and read
raw files anyway. `graphify install --project --strict` (or `graphify claude
install --strict`) now installs a hook that BLOCKS the first raw source read of a
session via permissionDecision:"deny" with a redirect to graphify query, then
downgrades to the soft nudge — it fires at most once per session (atomic
per-session marker) so it can never strand the agent, and a recent
query/explain/path refreshes a stamp that suppresses it. Claude Code only;
Bash-grep and Glob stay nudge-only; Gemini/Codex/OpenCode are unchanged.
GRAPHIFY_HOOK_STRICT=1/0 toggles at runtime without a reinstall; default installs
are byte-identical (soft nudge).
Also fixes#1840 for the default soft nudge: the guard no longer fires for reads
of out-of-project files, and softens to a non-mandatory nudge when the graph is
stale for the target file. Gating is ~3 stat calls (no corpus walk) and fails
open. Begins the 0.9.19 cycle.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
