chore: Add missing AGENTS.md to 6 repos (SCKG, IBD, PoC, ADW, Oracle, EFM)

[Delqhi]

Description

6 Python repos in the security/verification suite lack AGENTS.md files, violating SIN-Code standards and breaking sin-brain / sin-context-bridge integration.

Affected Repos (all at OpenSIN-Code/)

1. SIN-Code-SCKG-Tool — Most mature, 96 tests, v0.6.1
2. SIN-Code-IBD-Tool — v0.1.0, 5 tests
3. SIN-Code-PoC-Tool — v0.1.0, 9 tests
4. SIN-Code-ADW-Tool — v0.1.0, 11 tests
5. SIN-Code-Oracle-Tool — v0.1.0, 13 tests
6. SIN-Code-EFM-Tool — v0.1.0, 9 tests

Required AGENTS.md Content (per SIN standard)

# Repo Name — Description

## Architecture
[1 paragraph on what this tool does]

## Services
| Service | Port | Purpose |
|---------|------|---------|
| CLI | N/A | Main interface |

## Quick-Start
```bash
pip install -e .
tool --help

Key Endpoints / Commands

• tool <subcommand> — description

CoDocs

• All .py files have .doc.md companions
• Run sin codocs check to validate

Testing

pytest tests/ -v

Integration

• sin <tool> subcommand (once added to Bundle)
• MCP server: python -m src.server

## Acceptance Criteria
- [ ] All 6 repos have AGENTS.md at root
- [ ] `sin codocs check` passes for each repo
- [ ] `sin-brain` can discover rules from each
- [ ] `sin-context-bridge` can query each repo

## Priority
**HIGH** — Blocks sin-brain integration; easy fix (copy template)

[Delqhi]

SIN-Code repo now has the canonical AGENTS.md (388 lines, see commit 41f2ec2). Cross-repo propagation to the 6 ecosystem tools is still pending — separate per-repo PRs needed (SCKG, IBD, PoC, ADW, Oracle, EFM each need their own AGENTS.md, scoped to their package). Tracking: this issue stays OPEN until all 6 land.

[Delqhi]

Status (2026-06-12, post-v3.5.0)

Priority: LOW — housekeeping, ~2h total across 6 PRs.

Why still open

SIN-Code repo got the canonical 388-line AGENTS.md (commit 41f2ec2
for v3.0.0 scaffold, rewritten f09d2e2 for v3.5.0). The 6 ecosystem
tool repos (SCKG, IBD, PoC, ADW, Oracle, EFM) each need their own
scoped version (~200 lines each, template-driven from SIN-Code).

Concrete scope per repo

Each needs AGENTS.md at repo root with:

• 1-line Purpose ("this is the SCKG tool — builds semantic code graphs")
• Mandates inherited from SIN-Code: M1 (n8n CI), M2 (CGo-free Go),
  M3 (verification), M4 (allow/ask/deny)
• Build & verify: go build ./... && go test ./... -race -count=1
• Conventions: SPDX header, conventional commits, ≥85% coverage
• Integration: how this tool is consumed by SIN-Code
  (CLI subprocess? Go import? MCP server?)

Cross-refs

• Template: SIN-Code/AGENTS.md sections 1-3, 9-11 (copy & narrow)
• CI: ecosystem-sync.yml ensures registry.go ↔ permission_defaults ↔ ECOSYSTEM alignment
• Sister-issue: docs: Update all README.md files across OpenSIN-Code repos to current state #39 (README propagation)