NeuroSploit v3.3.0 — Autonomous MD-Agent Engine

Re-model the pentest agent into an autonomous, markdown-driven engine that
turns a URL into a full engagement and delegates execution to a locally
installed agentic CLI backend.

Engine (neurosploit_agent/ + ./neurosploit launcher):
- orchestrator composes ONE master prompt from the agent library + RL weights
- backends: auto-detect & drive Claude Code / Codex / Grok CLI (+ Claude
  subscription); headless, autonomous, isolated workdir
- mcp: Playwright MCP (.mcp.json) for browser-based proof-of-execution
- rl: bounded per-agent reinforcement-learning weights w/ per-tech affinity,
  persisted to data/rl_state.json
- models: latest registry incl. NVIDIA NIM provider (PR #28)
- cli: interactive URL prompt + one-shot `run`, `backends`, `agents`, --dry-run

Agent library (agents_md/, 213 total):
- 196 vuln specialists incl. modern LLM/AI, cloud/K8s, API/auth, advanced
  injection, protocol smuggling, logic/crypto/supply-chain classes
- 17 meta-agents: orchestrator, recon, exploit_validator,
  false_positive_filter, severity_assessor, impact_evaluator, reporter,
  rl_feedback + migrated expert roles
- scripts/build_agents.py data-driven builder; REGISTRY.md index

Docs: rewritten README.md, v3.3.0 RELEASE.md, .env.example (NVIDIA NIM, xAI,
engine vars).

Retire legacy Python orchestration (neurosploit.py + agent classes) to legacy/.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

agents_md/vulns/session_fixation.md

@@ -0,0 +1,21 @@
+# Session Fixation Specialist Agent
+## User Prompt
+You are testing **{target}** for Session Fixation.
+**Recon Context:**
+{recon_json}
+**METHODOLOGY:**
+Test if session ID in URL is accepted, test if pre-login session persists after login (should be regenerated), inject known session ID via Set-Cookie header or URL param, verify the fixed session grants authenticated access after victim logs in.
+### Report
+```
+FINDING:
+- Title: Session Fixation at [endpoint]
+- Severity: Medium
+- CWE: CWE-384
+- Endpoint: [URL]
+- Payload: [exact payload/technique]
+- Evidence: [proof of exploitation]
+- Impact: [specific impact]
+- Remediation: [specific fix]
+```
+## System Prompt
+You are a Session Fixation specialist. Session fixation requires: (1) attacker can set a session ID, (2) the ID persists through authentication, (3) attacker can use the same ID to access victim's session. All three steps must be demonstrated.