Attackgen Tabletop

AttackGen Tabletop / MSEL

Turn AttackGen's data into a facilitator-ready tabletop exercise. This skill orchestrates the AttackGen MCP tools and formats their output; the attack, threat-model and detection data always comes live from those tools.

Two paths, sharing one output shape:

Prerequisites

The AttackGen MCP server must be connected. Tool names may be namespaced by your client, e.g. attackgen.get_kill_chain.

Path A tools:

• list_threat_groups(matrix) / list_case_studies() — resolve a group or case-study name.
• get_kill_chain(matrix, group, seed?, industry?, company_size?) — the kill chain (one technique per phase for ATT&CK; full procedure for ATLAS).
• get_detection_report(matrix, technique_ids) — the Detection & Response join (ATT&CK v18 detection strategies + analytics + mitigations).
• get_navigator_layer(matrix, technique_ids, name?, description?) — optional Navigator layer JSON for a coverage visual.

Path B tools:

• list_ai_insider_options() — the option catalogue: archetypes, threat_categories, stride, capabilities, and quick-start templates (each with its archetype, categories, stride, brief and required_decisions).
• get_ai_insider_prompt(template?, archetype?, categories?, stride?, capabilities?, industry, company_size, scenario_seed?) — returns {"messages": [system, user]}, a composed prompt carrying the whole framework payload. Makes no LLM call and needs no key.

If these tools aren't connected, ask the user to add the server (claude mcp add attackgen -- python -m mcp_server, or their client's equivalent) and stop there.

Choosing a path

Take Path B when the adversary is the organisation's own AI agent — an autonomous coding or operations agent, an agent fleet, an evaluation harness, a "rogue agent", or anything the user frames as AI insider risk. Take Path A for a named external actor, an ICS group, an ATLAS case study, or a set of ATT&CK/ATLAS techniques. If the user wants an external actor whose tradecraft is AI-accelerated, that is still Path A — mention the AI-enhanced adversary variant (references/exercise-format.md) rather than switching paths.

Workflow — Path A (MITRE adversary)

1. Gather inputs: matrix (Enterprise/ICS/ATLAS), the group (threat group or ATLAS case-study name), industry, and company_size. Ask for whatever is missing. If unsure of a group name, call list_threat_groups(matrix) / list_case_studies() and pass the matched name verbatim.

2. Resolve the kill chain: call get_kill_chain with matrix, group, industry, company_size. Pass a seed (any integer) for a repeatable exercise; omit it for a fresh random draw. Read techniques (Technique Name, ATT&CK ID, Phase Name) and kill_chain_string.

3. Pull detection data: call get_detection_report with matrix and the ATT&CK IDs from step 2; use its markdown as the Detection & Response section. When it is null (ATLAS has mitigations only), say so and keep detection guidance light.

4. (Optional) Coverage layer: for a visual, call get_navigator_layer with the same IDs and offer the layer_json as a downloadable Navigator layer.

5. Choose the format and author the exercise (see Output format below), following references/exercise-format.md and tying every inject and discussion question to the techniques from step 2 and the detection data from step 3.

Workflow — Path B (AI insider threat)

1. Gather inputs: industry and company_size are required. You also need either a template or an archetype — supplying neither is an error.

2. Read the catalogue: call list_ai_insider_options(). Offer the user the templates by name, summarising each from its brief (where it has one) and its required_decisions. Two kinds:

   • Archetype templates (no brief) — decisions only, so the model invents the premise; re-running one gives a fresh exercise.
   • Incident templates (with a brief) — pin a specific situation, so the narrative is stable across runs.

   With no template, take an archetype (autonomy level L1–L4) plus one or more categories, and optionally narrow to specific stride codes. Pass names verbatim from the catalogue.

3. Build the prompt: call get_ai_insider_prompt with the selections plus industry and company_size. A template fills gaps and anything you pass explicitly wins over it; scenario_seed (free text describing the situation to rehearse) replaces a template's brief. Offer the seed when the user has a specific incident in mind.

   capabilities defaults to the full set, so leave it alone unless the user describes a deliberately narrower agent. Passing [] leaves the agent's capabilities unspecified — rarely what you want, since those lines are what make the scenario credible to a sceptical participant.

4. Generate from the returned prompt yourself. messages[0] is the system framing and messages[1] is the task; it already carries the deployment archetype and its access/detection/critical-control profile, the CERT dimensions, the agent capabilities, the full STRIDE threat scope (IDs, names and descriptions), the available detection strategies, the NIST CSF control set, and any scenario seed and required decision points. Work from that payload — do not substitute your own recollection of the threat model.

   (generate_ai_insider_scenario does the same thing server-side but needs an API key. Prefer get_ai_insider_prompt; fall back to the generate tool only if the user explicitly wants AttackGen's own model to write it.)

5. Reshape into the exercise per references/ai-insider-format.md. The prompt's own seven sections are a scenario, not an MSEL — that reference maps them onto the tabletop structure and adds the inject schedule, the phase-grouped discussion questions and the pass criteria.

Output format (both paths)

• Markdown (default) — render the sections from the path's format reference: references/exercise-format.md (Path A) or references/ai-insider-format.md (Path B).
• HTML report — when the user asks for a report, handout, deck, printable/PDF, or "make it nice," follow references/html-report.md: clone assets/tabletop-report.html, fill it with the real exercise, write it to the OS temp dir, open it, and report the path. That reference covers both paths.

references/exercise-format.md holds the house style (British English; realistic for the industry and size; pace to the adversary's tradecraft) for both paths; references/ai-insider-format.md carries only the Path B deltas.

Rules

• Data fidelity: every fact in the exercise traces to a tool result — Path A: technique, ID, DET id, analytic, log source and mitigation from get_kill_chain / get_detection_report; Path B: STRIDE ID and name, archetype profile, threat category, detection strategy and NIST CSF control from get_ai_insider_prompt / list_ai_insider_options.
• Recon / Resource Development (Path A): frame these as pre-compromise context (mitigation M1056) — they carry little detection telemetry.
• Reproducibility (Path A): report the seed you passed to get_kill_chain so the user can regenerate the identical exercise. Path B has no seed — report the template name (or the archetype/category/STRIDE selections) and any scenario_seed text instead.
• Rehearse the response, not the exploit (both paths, and load-bearing on Path B): the deliverable is a decision-forcing exercise. Describe what the adversary achieved and what the defenders must decide, never how to reproduce it. No working exploit code, no payloads, no bypass steps, no real unpatched vulnerabilities, and no naming of real third-party organisations as victims — give the outside party a plausible fictional name.
• No human motive on Path B: an AI agent has no intent in the human sense. Attribute its behaviour to configuration, access, capability and objective (misalignment, reward hacking, emergent objectives, prompt-injection compromise) — never to grievance, greed or malice.