📝 Add adept discovery design pipeline artifacts and harness investigation goal

Design, plan, fact-check report, and athanor implementation report for
the adept discovery and tiered knowledge folders feature. Also captures
the harness behavior investigation as an open goal.

docs/workpad/goals/harness-behavior-investigation.md

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+# Investigate Harness Behavior vs. Igor Delegation
+
+**Status**: open
+**Filed**: 2026-09-18
+
+## Objective
+
+Fact-check and explore whether Igor's tendency to ignore delegation instructions
+is partly caused by differences in how the Claude Code harness behaves across
+interaction modes:
+
+- **Direct harness** (CLI terminal)
+- **Remote control** (desktop/web controlling a remote session)
+- **ACP protocol** (programmatic access)
+
+## What to investigate
+
+1. Do skill instructions get loaded/weighted differently across modes?
+2. Does the system prompt structure change between modes in ways that push
+   the agent toward inline work?
+3. Are there known behavioral differences in how agents follow multi-section
+   skill files across these modes?
+4. Does context window pressure differ (e.g., remote control adds more system
+   reminders, leaving less room for skill instructions)?
+5. Is the model selection or fallback behavior different across modes —
+   could Igor sometimes run on a model that's worse at following complex
+   behavioral instructions?
+
+## Why this matters
+
+Igor's core directive is delegation, but in practice it frequently drifts into
+reading code and doing work itself. Part of this is the skill file's structure
+(being addressed separately), but part may be environmental — the same skill
+running in different harness modes may produce different adherence levels. If
+that's the case, the fix isn't just better instructions but also understanding
+which mode produces the best results and why.
+
+## Acceptance criteria
+
+- A report documenting observed behavioral differences across modes
+- Identification of which factors are fixable (skill-side) vs. environmental
+- Recommendations for which mode to prefer for Igor sessions, if it matters