Security Advisor & Remediation Engine (/mantis-advise)

System Goal

Proactive Secure Development & Architectural Remediation Engine. Functions as a security guardrail, advisory assistant, and architectural remediator for developers and coding agents. Queries Mantis threat models, historical vulnerability lineages, verified remediation patterns, triaged false positives, and learned trajectory invariants to ensure that new code and refactors are implemented securely from the start, and to synthesize robust architectural remediations for confirmed vulnerabilities.

Command Definition

Command: /mantis-advise
Description: Queries security knowledge for a given target file or module, evaluates proposed changes against known threat boundaries, and provides verified secure implementation guidance or architectural remediation plans.

Execution Command:

python3 "${MANTIS_HOME:-/path/to/mantis}/reference/scripts/advise.py" --file <target_file> [--db knowledge.db]

Arguments (optional):
- --file / -f (or --target / -t): Target source file or component path (e.g. src/auth.py or api/app.py). Defaults to repo-wide scope if omitted.
- --remediate / -r: Finding ID, lineage UUID, or file to generate an architectural remediation dossier and verification plan for.
- --db / -d: Path to Mantis SQLite database (default: auto-discovers knowledge.db or workspace/knowledge.db).
- --lineage / -l: Query lifecycle and recurrence for a specific lineage UUID.
- --signature / -s: Query lifecycle for a specific content signature hash.
- --json: Emit structured JSON output instead of formatted markdown.
- --full: Emit unabridged OKF markdown bodies and un-truncated diffs.

How to Fetch Guidance

All Mantis knowledge (threat models, historical findings, verified patches, triaged false positives, and learned invariants) lives in the SQLite database (knowledge.db). Do not look for flat files on disk (like learnings.jsonl or workspace/findings/*.json). Use one of the two execution doors below:

Mechanism 1: CLI Execution (Recommended for Coding Agents)

Coding agents with standard bash access should run advise.py using its installation-anchored absolute path.

Path Anchoring Requirement (CRITICAL): The advisor script resides within the Mantis installation directory at reference/scripts/advise.py. You MUST invoke this script via an absolute path or via $MANTIS_HOME. NEVER execute python3 reference/scripts/advise.py using a relative path inside the audited target repository, as untrusted repositories could spoof scripts or cause command failures.

Query Security Guidance for Target File:
```
python3 "$MANTIS_HOME/reference/scripts/advise.py" --file src/auth.py
```
Prints: Actionable security advisory markdown with active threat model, historical vulnerabilities, verified patch diffs, triaged false positives, and invariants.

Query Specific Bug Lineage & Recurrence:

python3 "$MANTIS_HOME/reference/scripts/advise.py" --lineage c3a5e982-1234-5678-9abc-def012345678

Machine-Readable JSON:

python3 "$MANTIS_HOME/reference/scripts/advise.py" --file src/auth.py --json

Architectural Remediation Dossier for a Finding:

python3 "$MANTIS_HOME/reference/scripts/advise.py" --remediate <finding_id>

Mechanism 2: Python Tool Invocation (Inside Pipeline / Harness)

When running inside an agent harness or Python environment:

from core.database import query_security_guidance

guidance = query_security_guidance(db_path="knowledge.db", filepath="src/auth.py")
print(guidance["guidance_summary"])

Or via tool helper:

get_security_guidance(filepath="src/auth.py")

Input/Output Contract

Reads:
- knowledge.db (findings, campaign_artifacts, learnings, and risk_scores tables).
- Target source code files (under repository root).
Writes:
- Structured Security Advisory & Guardrail recommendations formatted for the active developer or coding agent.

Core Advisory Protocols

Protocol 1: Pre-Implementation Security Context Check

Before authoring code or refactoring an existing module:

Run the Advisor: Execute python3 "$MANTIS_HOME/reference/scripts/advise.py" --file <target_file>.
Review Advisory Context:
- Trust Boundaries: Identify who interacts with this module (untrusted public internet, authenticated users, internal microservices).
- Historical Pitfalls: Review all vulnerabilities previously confirmed or reproduced on this file. Pay specific attention to recurring lineage_id chains.
- Verified Safe Idioms: Review verified patch diffs from prior passes marked VERIFIED_SECURE.
- Triaged False Positives: Review patterns previously classified as false positives to understand intentional design choices and avoid breaking legitimate functionality.

Protocol 2: Trust Boundary Verification

When introducing new endpoints, parameters, data parsing, or subprocess execution:

Input Normalization & Validation:
- Never trust input from external boundaries without canonicalization and strict schema enforcement.
- For file paths: resolve against jail boundaries using strict os.path.abspath or Path.resolve() checks (startswith(jail_dir)).
- For OS command execution: strictly use shlex.quote or array-based subprocess.run(["cmd", arg]) without shell=True.
Defense-in-Depth:
- Ensure server-side validation even if client-side validation is present.
- Ensure zero-privilege assumptions (e.g. no unnecessary IAM permissions, bounded execution timeouts).

Protocol 3: Lineage & Recurrence Defense

When fixing a reported vulnerability or refactoring a vulnerable component, check the bug's lineage_id via python3 "$MANTIS_HOME/reference/scripts/advise.py" --file <target_file>.
Ensure the new implementation completely closes all attack vectors demonstrated in prior re-attack verification test suites.

Protocol 4: Architectural Vulnerability Remediation & Sandbox Verification

When resolving a confirmed security flaw (in pipeline or standalone):

Grounding Context:
- Query python3 "$MANTIS_HOME/reference/scripts/advise.py" --remediate <finding_id> (or get_security_guidance(filepath=...)).
- Extract active OKF Threat Boundaries and Security Invariants.
- Inspect prior verified safe patterns from matching lineage history.
Architectural Synthesis:
- Do NOT produce superficial point-hacks (e.g. return None, hardcoded False, or commenting out endpoints) that lobotomize functionality.
- Refactor root-cause sinks using safe idioms (parameterization, strict bounds, array argv, canonicalized paths).
Sandbox Verification (INV-1 & INV-2):
- Apply the unified diff patch to the guest workspace (apply_patch).
- Run the finding reproducer (run_sandbox_with_evidence).
- Verify that the attack fails to reach the sink (reattack_status == "failed_to_bypass").
- Verify that existing functional test suites pass without regression.

Output Format

The Advisor outputs clean, actionable recommendations:

# Security Advisory: <target_file>

### 1. Threat Model & Trust Boundaries
- **Entry Points**: <untrusted network / RPC / CLI>
- **Sensitive Assets**: <credentials, filesystem, tenant data>

### 2. Known Pitfalls & Historical Lineages
- **[CWE-XX] <Title>** (Lineage: `<uuid>`): <How it occurred and how it was resolved>
- **Verified Safe Pattern**:
  ```python
  # Safe implementation idiom

3. False Positive Context (Intentional Behavior)

<Pattern>: <Why this pattern is considered safe in this specific architecture>

4. Implementation Checklist

Validated against path traversal / injection / deserialization.
Adheres to verified patch patterns.
Respects trust boundary isolation.