fix(mcp): _INSTRUCTIONS back under the 2k fold — the inception line is one clause, detail lives in the tool docstrings (#2882)

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

src/scribe/mcp/server.py

@@ -37,29 +37,23 @@ in local files (CLAUDE.md, auto-memory); Scribe holds the single copy.
 
 Hierarchy: Project -> Milestone -> Task/Note. The map, by purpose:
 - ORIENT: enter_project(id) at session start — rules, open tasks, recent
-  notes, Systems and design system in one call. If it returns `inception`,
-  the project's inheritance was never decided: raise that ask once, then
-  decide_project_inception.
-- START a project: create_project takes what it inherits — always-on
-  rulebooks to exclude, rulebooks to subscribe, design system, seed
-  Systems. Ask the operator first; never create a project bare by default.
+  notes, Systems, design system. `inception` key: ask what the project
+  inherits, decide_project_inception (create_project takes the same).
 - DO: create_task. Fixed a problem? kind="issue" (symptom -> root cause ->
   fix), never a work-log line on an unrelated task. Log with add_task_log;
   keep status honest — in_progress on start, done on finish.
 - PLAN work with an arc: start_planning. The plan IS a milestone; each step is
   a child task, not a checkbox. No local plan .md files.
-- CAPTURE: create_note. RECALL: search first, before answering about the
-  operator's work or opening a task — assume prior art exists, and pass the
+- CAPTURE: create_note. RECALL: search first — prior art exists; pass the
   active project_id to stay in scope.
 - WHERE work happens: Systems. Tag records with system_ids as you write;
   create_system when the area is unmodelled.
-- HOW to work: rules are pull-only and binding — call list_always_on_rules()
-  yourself at session start.
+- HOW: rules are binding — list_always_on_rules() at session start.
 - UI: the project's design system is binding — resolve_design_system /
   get_design_system_stylesheet before hand-writing a value.
 - REUSE: search snippets before writing a helper; record what you build with
   create_snippet; classify shapes against canon (classify_shapes) — a
-  consumer map is rows, never prose. Saved procedures are Processes (follow
+  consumer map is rows, never prose. Processes are saved procedures (follow
   verbatim). Deletes are trash-recoverable.
 
 A task is a note with status (*_note vs *_task tools).