feat: expand attention-filters from stub to full skill

skills/attention-filters/SKILL.md

@@ -37,3 +37,73 @@ Verdict: APPROVED or REJECTED with findings."
 "Here is the full research, the full proposal, the full implementation,
 the full git log, and everything else we have..."
 ```
+
+## Prompt Construction Templates
+
+### Explorer
+- **Receives:** Task description, file tree (max 200 lines), prior-cycle feedback (if cycle 2+)
+- **Excludes:** Creator proposals, Maker diffs, reviewer outputs
+- **Token target:** ~2000 tokens input
+
+### Creator
+- **Receives:** Task description, Explorer research (if available), prior-cycle feedback (if cycle 2+)
+- **Excludes:** Maker diffs, reviewer outputs
+- **Token target:** ~3000 tokens input
+
+### Maker
+- **Receives:** Creator's proposal (full), test strategy section, file list
+- **Excludes:** Explorer research, reviewer outputs, prior-cycle feedback
+- **Token target:** ~2500 tokens input
+
+### Guardian
+- **Receives:** Maker's git diff, proposal risk section, test results
+- **Excludes:** Explorer research, Creator rationale, Skeptic/Sage outputs
+- **Token target:** ~2000 tokens input
+
+### Skeptic
+- **Receives:** Creator's proposal (assumptions + architecture decision), confidence scores
+- **Excludes:** Git diff details, Explorer raw research, other reviewer outputs
+- **Token target:** ~1500 tokens input
+
+### Trickster
+- **Receives:** Maker's git diff only, attack surface summary (file types + entry points)
+- **Excludes:** Proposal, research, other reviewer outputs
+- **Token target:** ~1500 tokens input
+
+### Sage
+- **Receives:** Creator's proposal, Maker's implementation summary + diff, test results
+- **Excludes:** Explorer raw research, other reviewer verdicts
+- **Token target:** ~2500 tokens input
+
+## Token Budget Targets
+
+| Archetype | Fast | Standard | Thorough |
+|-----------|------|----------|----------|
+| Explorer  | skip | 2000     | 3000     |
+| Creator   | 2000 | 3000     | 4000     |
+| Maker     | 2000 | 2500     | 3000     |
+| Guardian  | 1500 | 2000     | 2500     |
+| Skeptic   | skip | 1500     | 2000     |
+| Trickster | skip | skip     | 1500     |
+| Sage      | skip | 2500     | 3000     |
+
+"skip" means the archetype is not spawned in that workflow tier.
+
+## Cycle-Back Filtering
+
+When injecting prior-cycle feedback into cycle 2+:
+
+1. **Summary only** — pass the structured feedback table (issue, source, severity), not full reviewer artifacts
+2. **Strip resolved items** — if a finding was marked Fixed in the Act phase, exclude it
+3. **Compress context** — prior proposal diffs reduce to "What Changed" section only (not full re-proposal)
+4. **Cap at 500 tokens** — if feedback exceeds this, summarize by severity (CRITICAL first, then WARNING, drop INFO)
+
+## Filter Verification Checklist
+
+Before spawning each agent, verify:
+
+- [ ] Prompt contains ONLY the artifacts listed in that archetype's "Receives" above
+- [ ] No cross-contamination from other reviewers' outputs
+- [ ] Token count is within 20% of the target for the current workflow tier
+- [ ] Prior-cycle feedback (if any) is summarized, not raw
+- [ ] Excluded artifacts are genuinely absent (search for keywords like file paths from excluded sources)