fix(expand,setup): append behavioral findings to sections 02-behavioral-profile.md actually has (#520)

Both commands told the model to add to "Strongest Behavioral Traits" and
"How I Work Best" / "How [Candidate] Works Best" while also saying "match
existing structure", but the shipped file's headings are "Strongest
Behaviors" and "How You Work Best", so an inferred trait either opened a
duplicate near-identical section or was dropped.

The companion to #519, which fixed the same drift in /reset's skeleton.
Both bullets now name the shipped headings, and a derived test in each
command's suite reads the quoted section names and requires each to be a
## heading of the shipped file; both fail on master.

.claude/commands/expand.md

@@ -189,7 +189,7 @@ Apply only the confirmed items. Use the Edit tool to add to the relevant section
 For each addition, add a brief source annotation in a comment or parenthetical: *(Coursera — Deep Learning Specialisation)*, *(GitHub — project-name)*, etc. This makes future `/expand` runs idempotent.
 
 ### Additions to `02-behavioral-profile.md`
-- Soft/behavioral signals → append to the "Strongest Behavioral Traits" or "How I Work Best" section (match existing structure)
+- Soft/behavioral signals → append to the "Strongest Behaviors" or "How You Work Best" section (the shipped file's `##` headings - match existing structure)
 - Always label inferred behavioral additions: *[Inferred from reference letter — Name / review before relying on this]*
 
 ---

.claude/commands/setup.md

@@ -167,7 +167,7 @@ For each skill file, compare extracted document content against the current file
 **Inference rules** (apply when populating from inferred sources):
 
 - **`01-candidate-profile.md` (`## Independent Projects`):** Source is `projects/` documents. Extract structured project entries formatted as `- **[PROJECT_NAME]**: [DESCRIPTION with tech stack and measurable outcome]`. Ground all claims in the document text.
-- **`02-behavioral-profile.md`:** Source is LinkedIn About + recommendation letters. Extract recurring themes, adjectives, phrases about how the candidate works. Add only to "Strongest Behavioral Traits", "How [Candidate] Works Best", or "Management Style Preferences" sections. Do not overwrite existing scored assessments. Always label inferred additions: *[Inferred from LinkedIn About / Reference letter - review before relying on this]*
+- **`02-behavioral-profile.md`:** Source is LinkedIn About + recommendation letters. Extract recurring themes, adjectives, phrases about how the candidate works. Add only to the "Strongest Behaviors", "How You Work Best", or "Management Style Preferences" sections (the shipped file's `##` headings). Do not overwrite existing scored assessments. Always label inferred additions: *[Inferred from LinkedIn About / Reference letter - review before relying on this]*
 - **`03-writing-style.md`:** Source is `cover_letter.tex` files. Extract recurring patterns. Add as observations under "## Patterns Observed in Past Applications". Do not modify existing rules. Only add if 2+ cover letters show a genuine pattern.
 - **`04-job-evaluation.md`:** Source is `job_posting.md` + `outcome.md` pairs. If an application reached interview or offer: note role type and sector as a confirmed strong-fit signal. If 2+ applications repeat a no-response or rejection pattern: note it. Add findings under "## Calibration from Past Applications". Do not modify the existing scoring framework.
 - **`05-cv-templates.md`:** Source is `cv_draft.tex` files. Extract any profile statement that does not already appear in templates. Label with: *[Used for: <company>_<role>]*. **Ground before extracting:** archived drafts are tailored outputs, not source documents - verify every factual claim in an extracted statement (titles, employers, metrics, technologies) against `01-candidate-profile.md` and drop or correct any claim the profile does not support, keeping only the framing. A tailored draft that drifted must never become a template future applications start from.

CHANGELOG.md

@@ -15,6 +15,17 @@ per-file diff commands.
 
 ### Fixed
 
+- **`/expand` and `/setup` now append behavioral findings to sections `02-behavioral-profile.md`
+  actually has** (`.claude/commands/expand.md` Step 5, `.claude/commands/setup.md` Step A7,
+  `tests/test_expand_command.py`, `tests/test_setup_command.py`) - both told the model to add
+  to "Strongest Behavioral Traits" and "How I Work Best" / "How [Candidate] Works Best" while
+  also saying "match existing structure", but the shipped file's headings are "Strongest
+  Behaviors" and "How You Work Best", so an inferred trait either opened a duplicate
+  near-identical section or was dropped. The companion to #519, which fixed the same drift in
+  `/reset`'s skeleton; the maintainer asked for this half as its own PR. Both bullets now name
+  the shipped headings, and a derived test in each command's suite reads the quoted section
+  names and requires each to be a `##` heading of the shipped file; both fail on master.
+
 - **`jobnet-search` and `jobdanmark-search` search results now carry the contract's `id`
   field** (`search.ts` and `search-normalization.test.ts` in both CLIs, both `SKILL.md`s) -
   `/add-portal`'s contract says every search result has at least `id`, `title`, `company`,

tests/test_expand_command.py

@@ -1,10 +1,12 @@
 """Tests for the /expand command specification."""
 
+import re
 import unittest
 from pathlib import Path
 
 REPO_ROOT = Path(__file__).resolve().parent.parent
 EXPAND_COMMAND_FILE = REPO_ROOT / ".claude" / "commands" / "expand.md"
+BEHAVIORAL_PROFILE = REPO_ROOT / ".claude" / "skills" / "job-application-assistant" / "02-behavioral-profile.md"
 
 
 class ExpandCommandTests(unittest.TestCase):
@@ -39,6 +41,26 @@ class ExpandCommandTests(unittest.TestCase):
         self.assertIn("Portfolio & projects grounded in code", text)
         self.assertNotIn("documents/projects/", text)
 
+    def test_behavioral_additions_name_sections_the_shipped_file_has(self):
+        # Step 5 told the model to append to "Strongest Behavioral Traits" or
+        # "How I Work Best" and to "match existing structure" - but the shipped
+        # 02-behavioral-profile.md has neither heading (it has "Strongest
+        # Behaviors" and "How You Work Best"), so the addition either landed
+        # in a duplicate near-identical section or was dropped. Derived from
+        # the shipped file so a renamed heading fails here until /expand follows.
+        text = EXPAND_COMMAND_FILE.read_text(encoding="utf-8")
+        start = text.index("### Additions to `02-behavioral-profile.md`")
+        section = text[start: text.index("---", start)]
+        quoted = re.findall(r'"([^"]+)"', section)
+        self.assertTrue(quoted, "the 02-behavioral-profile step must name its target sections")
+        headings = {
+            line[3:].strip() for line in BEHAVIORAL_PROFILE.read_text(encoding="utf-8").splitlines()
+            if line.startswith("## ")
+        }
+        for name in quoted:
+            with self.subTest(section=name):
+                self.assertIn(name, headings, f"02-behavioral-profile.md has no '## {name}' heading")
+
     def test_expand_enforces_additive_and_confirmation_principles(self):
         text = EXPAND_COMMAND_FILE.read_text(encoding="utf-8")
         self.assertIn("Additive only", text)

tests/test_setup_command.py

@@ -10,6 +10,7 @@ on the drafter noticing. A real user (#420) ran `/setup` and then hand-edited bo
 files to close the gap.
 """
 import os
+import re
 import unittest
 from pathlib import Path
 
@@ -90,6 +91,35 @@ class TemplatesStillCarryThePlaceholders(unittest.TestCase):
         self.assertIn("\\signature{[YOUR_NAME]}", text)
 
 
+class SetupPathAWritesIntoSectionsTheShippedFilesHave(unittest.TestCase):
+    """Step A7 named 02-behavioral-profile.md sections that do not exist.
+
+    "Strongest Behavioral Traits" and "How [Candidate] Works Best" are not
+    headings in the shipped file ("Strongest Behaviors", "How You Work Best"
+    are), so the "add only to these sections" rule pointed at nothing. The
+    section names are read from the bullet and checked against the file's
+    `##` headings, with the placeholder-free spelling required: a reader
+    cannot match "[Candidate]" against a heading.
+    """
+
+    def test_behavioral_profile_bullet_names_real_headings(self):
+        text = COMMAND.read_text(encoding="utf-8")
+        bullet = next(
+            line for line in text.splitlines()
+            if line.startswith("- **`02-behavioral-profile.md`:**")
+        )
+        quoted = re.findall(r'"([^"]+)"', bullet)
+        self.assertTrue(quoted, "the 02-behavioral-profile bullet must name its target sections")
+        headings = {
+            line[3:].strip()
+            for line in (SKILL_DIR / "02-behavioral-profile.md").read_text(encoding="utf-8").splitlines()
+            if line.startswith("## ")
+        }
+        for name in quoted:
+            with self.subTest(section=name):
+                self.assertIn(name, headings, f"02-behavioral-profile.md has no '## {name}' heading")
+
+
 class SetupPathAProjectsIngestion(unittest.TestCase):
     """Guards for /setup Path A document ingestion of documents/projects/."""