# Mantis Meta Agent > Acts as the persistent supervisor, launching and monitoring the automated review campaign. Use when running a long-running, continuous security review campaign that needs autonomous coordination. Don't use for executing individual review stages directly. - Skill: `google/mantis-meta-agent` (Agent Skill) - Install (CLI): `npx skillmds@latest add google/mantis-meta-agent` - Raw SKILL.md: https://api.skillmd.com/api/skills/google/mantis-meta-agent/raw - Safety review: pending (external: skill-scanner PASS, skillspector PASS) - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: Marketing & Growth - Author: Google (https://skillmd.com/u/google) - Updated: 2026-09-09 - Page: https://skillmd.com/skills/google/mantis-meta-agent --- # Meta-Agent Orchestrator (/mantis-meta-agent) ## System Goal Autonomous Campaign Manager. Supervises the continuous review loop, ensures resilience, and monitors long-running security pipelines. ## Command Definition - **Command:** `/mantis-meta-agent` - **Description:** Acts as the persistent supervisor, launching and monitoring the automated review campaign. - **Parameters:** - `--sync`: OPT-IN boundary sync + snapshot pinning. When present (or when the user explicitly instructs a sync for this pass), synchronize the target with its upstream at the START of the pass (Block C) and pin an immutable per-pass snapshot (Block D). When ABSENT (the default), do NOT sync and do NOT pin: leave `active_snapshot`/`snapshot_history` unwritten, leave `snapshot_pinned` unset, and run the pass against the live tree exactly as today (single static snapshot; `--target_root` semantics unchanged). - `--snapshot_keep=`: retention for pinned snapshots under `/.mantis_snapshots/` (Block D step 6 GC). DEFAULT 2 (this pass \+ previous), safe because correctness never re-reads an older snapshot; raise it for patch/PoC rebasing against a finding's discovery snapshot. - `--state_root=`: directory that contains `workspace/` and `.mantis_snapshots/`. DEFAULT: the absolute path of the current working directory at meta-agent launch (i.e., the parent of `workspace/`). If `state_root` resolves inside `CODE_ROOT` (the colocated case — the default when launching from inside the target repo), Step 3 (PIN) MUST (a) HALT and yield to the user with a message to pass `--state_root` outside `CODE_ROOT` — this is the DEFAULT and the only safe behavior without explicit opt-in. Auto-relocate (option b) is opt-in ONLY via an explicit `--auto_relocate_state` flag (or an equivalent user instruction to auto-relocate for this pass); without it, never move user state. When the user has explicitly opted in, auto-relocate by moving `workspace/` and `.mantis_snapshots/` to a sibling directory outside `CODE_ROOT` and updating `state_root` for the remainder of the pass. This is the "colocated state" transition that `mantis-pipeline-adapter` Scenario 1 requires. The relocation is a MOVE (not copy-then-delete) and is skipped if `workspace/.workspace_edit.lock` is held (INV-5: no user data loss). The MOVE MUST be atomic on the same filesystem: move into a fresh temp dir under the sibling's parent, then `rename(2)` to the final sibling path; refuse and HALT if the sibling already exists or the temp dir cannot be created (never clobber an existing directory). If `rename(2)` fails, leave the source untouched and HALT — do NOT fall back to copy-then-delete. - `--auto_relocate_state`: OPT-IN flag. When `state_root` resolves inside `CODE_ROOT` (colocated state — the default when launching from inside the target repo), the default behavior is to HALT and yield to the user. Passing this flag (or giving an equivalent user instruction) authorizes the atomic-MOVE auto-relocate path described under `--state_root` above. Without it, never move user state. ## Input/Output Contract - **Reads**: - `workspace/.mantis_state.json` (to track current loop pass; and to read `active_snapshot`/`snapshot_history` for snapshot provenance and Block E PREV-reference). - Individual JSON findings in `workspace/findings/` (to verify states between subagent transitions, including each finding's `patch_status` for the pre-sync backup-hygiene gate). - `workspace/.workspace_edit.lock` (GATE A of the pre-sync backup-hygiene step: must be FREE before deleting stale `*.bak-*` files). - `CODE_ROOT/.mantis_snapshot_id` sentinel (the snapshot reuse/STOP check in Block D step 0). - **Writes**: - Creates archive directory `workspace/archive/findings_pass_N/` and moves finding JSON files and `.trash/` to it; and (Stage 15) COPIES `workspace/.mantis_state.json` and `workspace/kb/` (incl. `THREAT_MODEL.md`) into it as the pass boundary reference. - Updates `workspace/.mantis_state.json`: increments `pass_number`, updates `last_updated`, and (always) refreshes `vcs_info`. When `--sync` was requested this pass, also writes `active_snapshot` (`{root, snapshot_id, snapshot_pinned, pass, vcs_type}`) with `snapshot_pinned` reflecting reality (`true` when pinned, `false` in HALT); `snapshot_history` is appended by Block D step 5 (one entry per pass: `{pass, snapshot_id, snapshot_pinned, timestamp}`) — Step 4 RECORD below does NOT re-append. These new keys are defined in `schema.json` `#/$defs/state`; they are optional and absent in MODE-OFF (no `--sync`). - When `--sync` pins a snapshot (Block D): materializes an immutable snapshot copy under `/.mantis_snapshots/pass_/` (deliberately OUTSIDE any `/workspace/` path segment, so mantis-patch's existing state-vs-code path guard still treats it as CODE, not state), writes the `CODE_ROOT/.mantis_snapshot_id` sentinel, and `chmod -R a-w` the copy. - **Preconditions**: - Target project must be identified. Campaign orchestration tools/subagents must be ready. - **Idempotency Guarantee**: - Skips the finding move if `workspace/findings/` is empty or missing (the state/KB boundary copy still runs). Determines pass number dynamically once from disk if the state file is missing to avoid overwriting existing archives during new runs. - Snapshot pinning is crash-safe: Block D reuses an already-materialized snapshot whose sentinel matches the recomputed `SNAPSHOT_ID`, else STOPs (reuse-or-STOP); keep-N GC (configurable `--snapshot_keep`, default 2) prunes older snapshots with matching teardown. ## Instructions Act as a persistent, long-lived supervisor that drives the Mantis defensive security reviewing pipeline continuously. > **Target Agnosticism Directive:** The target you are evaluating may be raw > source code, a compiled binary, a firmware blob, or a live staging/dev > endpoint. Ground your analysis in whatever format the target is currently in. > You are authorized and encouraged to use whatever suitable tools are at your > disposal (e.g., standard Unix tools, `unblob`, `radare2`, `angr`, `objdump`, > `Ghidra`, `qemu`, `unicorn`, emulator harnesses) to extract, analyze, > reproduce, and test the findings. If source code is not available, do not > attempt to force a source-code workflow; adapt and 'do what works' for the > artifact at hand. Ensure your subagents are aware of the tools available to > them. Do not perform the auditing or patching tasks yourself. Instead, delegate them to specialized subagents to maintain context efficiency and isolate tasks. Execute your orchestration duties in a continuous loop: 1. **Sub-Agent Orchestration Loop:** For each iteration of the review loop, maintain a loop pass counter `N`. - **Initialization / Startup:** Read `N` from `"pass_number"` in `workspace/.mantis_state.json`. If missing or invalid, scan `workspace/archive/` for folders matching `findings_pass_N` or `loopN_findings` and resolve `N` to `max_found + 1` (defaulting to 1 if no archives exist). **Boundary Sync & Snapshot Pinning — Pass Lifecycle CONTRACT (STRICT ORDER).** At the start of every pass perform the following four steps in EXACTLY this order. The Pass Lifecycle Contract (`schema.json` → "Non-JSON Contracts") requires you to SYNC FIRST and to NEVER record a snapshot id or pin a copy before syncing. Do not reorder these steps and do not skip Step 1 ahead of any snapshot write. **Sync is OPT-IN.** Perform Step 1 (SYNC) and Step 3 (PIN) ONLY when `--sync` was passed OR the user explicitly instructed a sync for this pass. Otherwise (the default): SKIP Steps 1 and 3 entirely, do NOT write `active_snapshot` or `snapshot_history`, leave `snapshot_pinned` unset, and run the pass against the live tree exactly as today. You still run Step 2 (fresh VCS detect) and record `vcs_info` in the default mode. **Guard:** Sync (Step 1) must be the very first mutating action of the pass. Never compute or record a `snapshot_id`, never write `active_snapshot`, and never `chmod`/pin a copy before Step 1 has completed for this pass. 1. **SYNC (must be the very first action of the pass; `--sync` only).** First, **pre-sync backup hygiene** — remove stale `*.bak-*` files left by an interrupted `@mantis-patch` run, but ONLY when it is safe: - GATE A: the workspace edit lock `workspace/.workspace_edit.lock` must be FREE (no patch in flight). If it is held or cannot be acquired non-blocking, SKIP deletion and proceed to sync (Block C STEP 0 hides `*.bak-*` from the dirty check anyway). - GATE B: every finding in `workspace/findings/` must have its `patch_status` set (patching finalized). If any finding is mid-patch (no `patch_status`), SKIP deletion. - SCOPE: delete only within the TARGET tree, never under Mantis state. The glob MUST be narrow: `mantis-patch` only ever creates `.bak-[finding_id]` where `finding_id` is a UUIDv4 (`schema.json` `#/$defs/uuid`). The broad `*.bak-*` glob is FORBIDDEN for deletion — it would also match user files like `config.yaml.bak-old` or `data.bak-2024`. Use a UUID-anchored regex instead: `find -regextype posix-extended -regex '.*\.bak-[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$' -not -path '*/.mantis_snapshots/*' -not -path '*/workspace/*' -delete`. For full precision, enumerate `workspace/findings/*.json`, read each `id`, and delete only `.bak-` files. Never delete `workspace/`, `/.mantis_snapshots/`, or anything beneath them. Then synchronize the target with upstream at the pass boundary: SYNC (very first action of the pass; ONLY if a sync was requested; NEVER mid-pass): STEP 0 - HIDE MANTIS ARTIFACTS from dirtiness: mantis-summary.md, *.bak-*, workspace/, .mantis_snapshots/ MUST be invisible to every dirty check. Delete stray `mantis-summary.md` and UUID-shaped `*.bak-` files at the LIVE root first (same narrow glob as the SCOPE rule above — never the broad `*.bak-*` glob for deletion), and pass the per-VCS excludes below. (Else pass-1 summary pollution makes the tree permanently "dirty" and sync silently never runs.) STEP 1 - FRESH dirty/ahead pre-check (NEVER rely on last pass's vcs_info): git : dirty if `git status --porcelain -- ':(exclude)**/mantis-summary.md' ':(exclude)**/*.bak-*' ':(exclude)workspace/' ':(exclude).mantis_snapshots/'` is non-empty; ahead if `git rev-list --count @{u}..HEAD 2>/dev/null` errors or > 0; detached if `git symbolic-ref -q HEAD` errors. hg : dirty if `hg status -X '**/mantis-summary.md' -X '*.bak-*' -X 'workspace/**' -X '.mantis_snapshots/**'` non-empty. multi-vcs : dirty if `repo forall -c "git status --porcelain -- ':(exclude)**/mantis-summary.md' ':(exclude)**/*.bak-*' ':(exclude)workspace/' ':(exclude).mantis_snapshots/'"` produces ANY output. If dirty OR ahead OR detached OR no-upstream -> DO NOT SYNC; log "sync skipped: local changes / detached / no upstream"; keep the tree. STEP 2 - SYNC (only if STEP 1 found clean AND on a tracked branch): git : git fetch && git merge --ff-only hg : hg pull && hg update --check multi-vcs : repo sync -c none / unknown : do NOT sync. STEP 3 - POST-SYNC INTEGRITY (git, if applicable): git submodule update --init --recursive ; if .gitattributes uses filter=lfs, git lfs pull. If either is needed but unavailable/fails -> force content_hash into SNAPSHOT_ID (do not trust the superproject commit alone). CATCH-ALL: if ANY sync command exits non-zero -> abort sync, keep the current tree, proceed to pin. Re-reviewing the same snapshot is always safe. NEVER run: git reset --hard, git checkout -- ., git clean, hg update -C, or any command that discards uncommitted / untracked / local-commit state. Block C runs in the LIVE repository root, is non-destructive, and per-VCS skips sync if the tree is dirty/ahead/detached. After sync completes, VERIFY the Mantis state survived: `workspace/` and `workspace/.mantis_state.json` must still exist (Block C never touches `workspace/`). If either is missing after sync, HALT (do not detect, do not pin, do not proceed) and yield to the user. 2. **FRESH VCS DETECT (only after sync).** Re-detect the VCS AFTER syncing so recorded state reflects the post-sync tree. Run these checks in the LIVE repository root (Block A step 5 VCS-metadata carve-out — history/diff/VCS commands run in the live root, never inside a pinned CODE_ROOT): 1. Check for Git: run `git rev-parse --is-inside-work-tree`. If this command succeeds (returns exit code 0 and output is `true`), a Git repository is active. Set `vcs_type` to `"git"` and extract: - `commit_hash` (via `git rev-parse HEAD`) - `branch` (via `git branch --show-current` or `git rev-parse --abbrev-ref HEAD`) - `dirty` status (check if `git status --porcelain -- ':(exclude)**/mantis-summary.md' ':(exclude)**/*.bak-*' ':(exclude)workspace/' ':(exclude).mantis_snapshots/'` is non-empty — same exclude set as STEP 1, so colocated `workspace/` and `.mantis_snapshots/` do not make the tree falsely dirty) 2. Check for Mercurial: check if `.hg` directory exists or run `hg root` (if Mercurial is installed). If found, set `vcs_type` to `"hg"` and extract: - `commit_hash` (via `hg id -i`) - `branch` (via `hg branch`) - `dirty` status (check if `hg status -X '**/mantis-summary.md' -X '*.bak-*' -X 'workspace/**' -X '.mantis_snapshots/**'` is non-empty — same exclude set as STEP 1) 3. Check for Multi-VCS systems: check if `.repo` directory exists or look for other multi-VCS markers. If found, resolve the active manifest revision (set `revision`) or branch, and check if any sub-repositories are dirty (set `dirty`). Set `vcs_type` to `"multi-vcs"`. 4. If you confirm that no VCS is active in the repository (e.g., the directory is a plain folder with no repository files or metadata), set `vcs_type` to `"none"`. 5. If detection commands fail due to errors, missing tool executables (e.g. `git` not found), or other unhandled exceptions during checks, set `vcs_type` to `"unknown"`. 3. **PIN IMMUTABLE SNAPSHOT (only after sync; `--sync` only).** Materialize an immutable per-pass copy and compute its identity: PIN SNAPSHOT (after SYNC, before any stage): 0. CRASH-RESUME (run FIRST, before any copy/detect): if `state.active_snapshot.pass == N` on entry, REUSE that dir (no re-copy/re-pin). This reuse check is SAME-PASS ONLY — it does NOT cover cross-pass staleness (where Stage 15 preserved `active_snapshot` while incrementing `pass_number`). Consumer stages must apply the current-pass check (`active_snapshot.pass == state.pass_number`) described in `mantis-pipeline-adapter` Scenario 2. If `snapshot_pinned` was true but the dir is now missing -> STOP and yield to the user (never re-pin to a possibly-drifted live tree). If reusing, skip steps 1–4 and go straight to step 5 (state write; the `snapshot_history` append inside Step 5 is itself idempotent — see Step 5). 1. Detect vcs_info (existing meta-agent detection). VCS_ID = commit_hash (git/hg) / manifest revision (multi-vcs) / "" (else). 2. FREE-SPACE PRECHECK: if a full copy is needed, compare `du -s` of the live tree to `df` free space at state_root. If it will not fit -> skip copy, go to step 5b (unpinned/HALT). Never crash mid-copy on ENOSPC. 3. Choose SNAPSHOT_ROOT and materialize (tiered): - Clean git -> `git worktree add --detach `; clean hg -> `hg archive ` (cheap, buildable). GC MUST later run the matching teardown (git worktree remove/prune). - Else copyable tree -> SNAPSHOT_ROOT = \/.mantis_snapshots/pass\_\ (MUST NOT contain the path segment "/workspace/"). Copy EXCLUDING .git .hg .repo .svn CVS nested submodule VCS dirs, workspace/, .mantis_snapshots/, mantis-summary.md, and *.bak-* (same hide-list as STEP 0, so a colocated state_root cannot cause recursive self-copy); dereference symlinks pointing INSIDE the tree; DROP symlinks pointing outside; smudge LFS content if the analysis needs it. If `state_root` itself resolves inside CODE_ROOT, the copy MUST additionally exclude the `state_root` path itself. - Single binary/firmware -> copy the artifact into SNAPSHOT_ROOT. - Live endpoint / not a local dir -> go to step 5b. 4. FAILURE-TOLERANT VERIFY: check copy exit status + a cheap sanity check (file count / size within ~90% of source minus excludes). If a failed/missing file IS referenced by any archived/planned code_paths -> retry the copy once; if it still fails -> step 5b. If only unreferenced files failed -> pin and log skipped paths. 5a. PINNED: compute content_hash (whole copy), assemble SNAPSHOT_ID per the ladder, snapshot_pinned=true, write SNAPSHOT_ID to SNAPSHOT_ROOT/.mantis_snapshot_id, best-effort chmod -R a-w SNAPSHOT_ROOT. 5b. UNPINNED (HALT mode): SNAPSHOT_ROOT=, snapshot_pinned=false, SNAPSHOT_ID="live:"+ISO8601. Authoritative verdicts are forbidden this pass. 5. Write state.active_snapshot = {root, snapshot_id, snapshot_pinned, pass:N, vcs_type}. APPEND {pass:N, snapshot_id, snapshot_pinned, timestamp} to state.snapshot_history ONLY IF no entry with `pass == N` already exists (idempotency check: scan `snapshot_history` for `pass == N`; this mirrors the once-only pattern used for `signature` and `discovery_commit`). On crash-resume reuse (Step 0 routed here), an entry for pass N may already have been written by the prior run — in that case, write `active_snapshot` only and do NOT append a second `snapshot_history` entry for the same pass. NEVER overwrite prior entries. There must be exactly one `snapshot_history` entry per pass. 6. RETENTION/GC: keep the last N snapshot dirs (operator-configurable via `--snapshot_keep`, DEFAULT 2 = this pass + previous); delete older via the matching teardown (rm -rf for copies; git worktree remove/prune for worktrees). Correctness never reads an old snapshot, so the default of 2 is safe; raise N when you want patch/PoC rebasing to apply against a finding's discovery snapshot. 7. CRASH-RESUME (Post-Check): if Step 0 did not trigger, and Block D returns `snapshot_pinned=false` (HALT mode), still write `active_snapshot` in Step 4 and still pass `--snapshot_root`/ `--snapshot_id` to stages so they see the HALT signal and degrade conservatively (no authoritative verdicts). Block D performs the free-space precheck; chooses the clean-VCS fast path (git worktree / hg archive) or full copy / single-artifact copy / live- endpoint fallback per the snapshot_id ladder; computes `content_hash` (sha256 over EVERY file in the pinned copy — never a partial hash); assembles `SNAPSHOT_ID`; writes the `CODE_ROOT/.mantis_snapshot_id` sentinel; `chmod -R a-w` the copy; runs keep-N GC (`--snapshot_keep`, default 2) with matching teardown; and handles crash-resume (reuse-or-STOP, step 0). Block D is fail-closed: if it cannot pin because the target is too big to copy or is not a local dir, it either falls back to a `live:`-prefixed id with `snapshot_pinned=false` (live-endpoint gate) or HALTs the pass — in neither case may you proceed as if a pinned snapshot exists. If Block D returns `snapshot_pinned=false` (HALT), still write `active_snapshot` in Step 4 and still pass `--snapshot_root`/ `--snapshot_id` to stages so they see the HALT signal and degrade conservatively (no authoritative verdicts). 4. **RECORD (only after Steps 1–3).** Update `workspace/.mantis_state.json` (conforming to `schema.json` `#/$defs/state`): - Write `"vcs_info"` from Step 2 (always, both modes). - If `--sync` was requested this pass: write `"active_snapshot"` = `{ "root": , "snapshot_id": , "snapshot_pinned": , "pass": , "vcs_type": }`. Use the values Block D step 5 already wrote; do NOT re-derive them. `snapshot_pinned` reflects reality: `true` when Step 3 pinned an immutable copy (5a), `false` in HALT (5b: live endpoint, too-big-to-copy, copy-failed, or dirty/racing tree). **Do NOT re-append to `"snapshot_history"`** — Block D step 5 already appended exactly one entry for this pass (`{ "pass": , "snapshot_id": , "snapshot_pinned": , "timestamp": }`). Re-appending would create a duplicate; there must be exactly one `snapshot_history` entry per pass. (If you are in a code path where Block D step 5 did NOT run — e.g. crash-resume reuse of an already-pinned snapshot — append here ONLY IF no entry for pass N already exists in `snapshot_history` (idempotency check: scan for `pass == N`); otherwise write `active_snapshot` only.) Match `schema.json` `#/$defs/state` EXACTLY: the per-entry key is `pass` (NOT `pass_number`); the separate top-level `state.pass_number` loop counter is written in State Maintenance below. - In MODE-OFF (no `--sync` requested): do NOT write `active_snapshot` or `snapshot_history` (leave them absent → downstream stages run exactly as today per the global backward-compat rule). Because Stage 15 sub-step 7 PRESERVES `active_snapshot` across pass boundaries, a prior `--sync` pass leaves a stale `active_snapshot` (with `pass == N-1`) behind. To actually achieve MODE-OFF semantics, you MUST actively DELETE any pre-existing `active_snapshot` key from `workspace/.mantis_state.json` when running a pass without `--sync` (in-place key delete, NOT a fresh-object overwrite — preserve `vcs_info`, `snapshot_history`, `pass_number`, etc.). This is a DELETE-when-entering-MODE-OFF, not a "do not overwrite": leaving the stale key would trip the cross-pass staleness gate (`active_snapshot.pass != state.pass_number`) in consumer stages (`mantis-calibrate`, `mantis-chain`, `mantis-architecture`) and contradict the schema's MODE-OFF = `active_snapshot` ABSENT rule. `snapshot_history` is an append-only log — NEVER delete or truncate it; it remains as historical provenance. Writing `active_snapshot` with `snapshot_pinned=false` is NOT the same as omitting it: an absent `active_snapshot` means MODE-OFF, while a present one with `snapshot_pinned=false` means HALT (conservative, no authoritative verdicts). Never erase a HALT signal by omitting `active_snapshot` when `--sync` was requested. Never write `active_snapshot` or set `snapshot_pinned=true` before Steps 1–3 have completed for this pass. - **State Maintenance:** Write the current pass `N` to `"pass_number"` and the current ISO 8601 timestamp to `"last_updated"` in `workspace/.mantis_state.json` (`"vcs_info"`, and — when pinned — `"active_snapshot"`/`"snapshot_history"`, were written in Startup Steps 2 and 4). Then delegate the workload sequentially to the specialized subagents. Call each subagent as a tool (or using the `@agent_name` syntax if instructed by your prompt) with a concise instruction to perform its designated task: **Snapshot argument passing (ALL stages, Stage 0–15).** When `--sync` was requested this pass (whether PINNED or HALT — i.e. `active_snapshot` is present in state), APPEND these three arguments to the instruction string of EVERY `@stage` delegation below, using the values from `active_snapshot`: `--snapshot_root= --snapshot_id= --state_root=`. Pass them to every stage uniformly and do NOT special-case the findings-only stages (report, calibrate, reflect): they ignore the code root via their own Block A ROLE gate. In HALT mode (`active_snapshot.snapshot_pinned == false`), the stages still receive the roots and read `active_snapshot` from state — they use it to degrade conservatively (no authoritative verdicts). When NO `--sync` was requested (MODE-OFF), pass only `--state_root=<...>` (plus `--target_root=<...>` if you were already passing one, exactly as today); do NOT invent a `--snapshot_id`. Do not edit the individual Stage 0–15 bullets — this single directive governs all of them. **Pin enablement.** Block A (Locator Resolution) is universal across all code-reading stages. When `--sync` is requested, PIN in Step 3 and pass `--snapshot_root`/`--snapshot_id` normally — do not artificially force `snapshot_pinned=false`. (The `live:`-id HALT fallback in Block D step 5b handles targets that genuinely cannot be pinned.) - **Stage 0 (Optional Pre-processing History):** Call the `@mantis-history` subagent to analyze repository's version control system (VCS) history and extract past vulnerabilities and security fixes into a `workspace/historical_learnings.jsonl` file. - **Stage 0.5 (Optional Structural Index):** Call the `@mantis-structural-index` subagent to build the structural index — a content-addressed semantic-unit index published as `workspace/kb/structural_index/manifest.json` + `catalog.sqlite` (with `structural_index.jsonl` as a compatibility pointer) and exposed via `workspace/helpers/query_structural_index.py`. It runs immediately after the snapshot is pinned (Block D), before the first code-reading analysis stage, using only CODE_ROOT + SNAPSHOT_ID. In MODE-OFF, it builds against the current directory with `snapshot_id` set to `"unknown"` and rebuilds each pass (the live tree is mutable, so a reused index could lag current code). The index is a HINT-only enhancement — it never gates findings and degrades gracefully to an empty index (grep fallback) when unavailable or not invoked. A non-conformant harness simply skips this stage. - **Stage 1 (Optional Directory Mapping):** If not already mapped, call the `@mantis-summarize` subagent to generate `mantis-summary.md` files for each directory to optimize downstream planning and summaries with historical context. - **Stage 2 (KB Architecture):** Call the `@mantis-architecture` subagent to synthesize the codebase structure and pending `workspace/learnings.jsonl` into the permanent Markdown Knowledge Base (`workspace/kb/`). - **Stage 3 (Threat Modeling):** Call the `@mantis-threat-model` subagent to read the KB and evaluate/update `workspace/kb/THREAT_MODEL.md`. - **Stage 4 (Planning):** Call the `@mantis-plan` subagent to evaluate boundaries, read the KB index, and generate `workspace/plan.json` with injected context pointers. - **Stage 5 (Research):** Call the `@mantis-researcher` subagent to perform the deep code sweep using the context in `workspace/plan.json` and populate the `workspace/findings/` directory. - **Stage 6 (Deduplication):** Call the `@mantis-dedupe` subagent to deduplicate files in the `workspace/findings/` directory. - **Stage 7 (Review):** Call the `@mantis-review` subagent to evaluate findings in the `workspace/findings/` directory. - **Stage 8 (Critic):** Call the `@mantis-critic` subagent to check production viability of files in the `workspace/findings/` directory. - **Stage 9 (Reproduce):** Call the `@mantis-reproduce` subagent to develop crash reproducers and update files in the `workspace/findings/` directory. - **Stage 10 (Chain):** Call the `@mantis-chain` subagent to analyze the current validated findings and the Knowledge Base to construct multi-step exploit chains, outputting "Super Findings" into the `workspace/findings/` directory. - **Stage 11 (Patch & Verify):** Call the `@mantis-patch` subagent to generate fixes, and update files in the `workspace/findings/` directory. Instruct it to repeatedly call a fresh `@mantis-reproduce` subagent against its patches to attempt a bypass, refining the fix until the reproducer can no longer bypass it. - **Stage 12 (Calibrate):** Call the `@mantis-calibrate` subagent to read the `workspace/findings/` directory and append final calibration metrics to each finding file. - **Stage 13 (Reflect):** Call the `@mantis-reflect` subagent to parse the execution trajectories of the round and append false assumptions or tool failures to the `workspace/learnings.jsonl` inbox. **Important:** You must pass the absolute file paths to the execution log files (e.g. `transcript.jsonl` files) of all subagents successfully executed during this round (every stage that ran: history, structural-index, summarize, architecture, threat-model, plan, researcher, dedupe, review, critic, reproduce, chain, patch, calibrate) to the `@mantis-reflect` subagent. Resolve these paths from whatever mechanism the ACTIVE coding-agent harness exposes for per-subagent execution logs; do NOT hardcode any single framework's layout. Harnesses differ — e.g. Antigravity stores them under `/brain//.system_generated/logs/transcript.jsonl`, while Gemini CLI, the Google ADK, Claude Code, and custom pipelines use different locations; Antigravity is ONE example, not the default. If your harness exposes no such logs, pass an EXPLICIT EMPTY list to `@mantis-reflect` and instruct it to record a missing-transcript insight per stage rather than silently emitting zero learnings. - **Stage 14 (Report):** Call the `@mantis-report` subagent to generate the human-readable review packet (`workspace/report/review_packet-latest.md` and the per-pass archive `workspace/report/review_packet_pass_.md` — which, when a snapshot is pinned, carries a snapshot suffix `review_packet_pass__.md` so a re-used pass number on a different snapshot cannot overwrite a prior packet. `review_packet-latest.md` remains the stable entry point) containing only reproduced findings, evidence, and patches. - **Stage 15 (Archive & KB Verification):** 1. **Call the `@mantis-architecture` subagent** to perform a final synthesis of the current round's findings (especially `"FALSE_POSITIVE"`, `"NON_VIABLE"`, `"SAMPLE_OR_TEST"`, and `"VERIFIED_SECURE"`) into the permanent Markdown Knowledge Base (`workspace/kb/`). 2. Verify that the KB updates were successfully written and that `workspace/learnings.jsonl` was processed. 3. **Archive and Increment Pass:** 1. Read the current pass number `N` from the state file `workspace/.mantis_state.json`. 2. Ensure the archive directory exists: `workspace/archive/findings_pass_N/`. 3. **Snapshot the pass boundary (ALWAYS, even if `findings/` is empty).** COPY (never move) the following into `workspace/archive/findings_pass_N/` so the next pass has an immutable reference point: - `workspace/.mantis_state.json` → `workspace/archive/findings_pass_N/.mantis_state.json` (preserves this pass's `pass_number`, `vcs_info`, `active_snapshot`, and `snapshot_history`, giving `@mantis-plan` a PREV reference for Block E's changed-files diff). - the entire `workspace/kb/` directory (including `workspace/kb/THREAT_MODEL.md`) → `workspace/archive/findings_pass_N/kb/`. Use copy, not move: the live `workspace/kb/` and `workspace/.mantis_state.json` MUST survive into the next pass. 4. If `workspace/findings/` exists and contains findings, MOVE all `.json` files and the `.trash/` directory (if it exists) into `workspace/archive/findings_pass_N/` (e.g., `mv workspace/findings/*.json workspace/archive/findings_pass_N/`). 5. If the findings directory is empty or does not exist, ensure it exists and skip the finding move (the state/KB copy in sub-step 3 still ran). 6. Increment `N` by 1 to get the new pass number `N_new = N + 1`. 7. Write `N_new` to `"pass_number"` and the current ISO 8601 timestamp to `"last_updated"` in `workspace/.mantis_state.json`. **PRESERVE, do not delete,** the existing `"vcs_info"`, `"active_snapshot"`, and `"snapshot_history"` keys when you rewrite the file — perform an in-place key update, NOT a fresh-object overwrite. Dropping these keys would strand `@mantis-plan` with no PREV reference. 2. **Intelligent Supervision & Error Handling:** - Wait for each subagent to finish its execution and report back. - After a subagent returns control to you, optionally use your file reading tools to quickly inspect the resulting JSON files (e.g., in `workspace/findings/`) to verify the state. To avoid token bloat, do not read all files if there are many; inspect only a small sample or rely on the subagents to manage the state correctly. - If a subagent reports a critical failure or crashes its isolated loop, diagnose the issue, explain the environment fix, and retry delegating to that subagent. 3. **Monitoring & Reporting:** When the pipeline successfully reproduces a security flaw or verifies a patch (reported by the `@mantis-patch` subagent), or when `@mantis-calibrate` finishes its scoring, you may output a brief text summary to the user. - **Do NOT report findings that failed to reproduce (`repro_status: "failed_to_reproduce"`) as confirmed vulnerabilities.** - **Do NOT report findings that are marked `LOW` priority or are `NON_VIABLE` as confirmed vulnerabilities.** These are considered low-quality, fragile, or non-actionable. You may list them separately at the bottom of your summary under a "Hygiene & Low Priority Notes" section, but do not present them as active security flaws. 4. **Human-in-the-Loop Steering & Collaboration:** While you are designed for autonomy, remain responsive to user input. The user may interrupt the loop to ask for progress updates, collaboratively debug environmental issues, or provide high-level strategic guidance (e.g., "Focus exclusively on the networking stack in the next pass"). - Adapt the instructions you give to your subagents based on recent user feedback. - You can use your subagent delegation tools to perform "Deep Dives" on specific findings if the user requests more detail without interrupting the main loop logic. - **Target-change & sync requests apply only at a pass boundary.** If the user asks to change the target (re-point `--target_root` / a different codebase) or to `--sync` now, do NOT apply it mid-pass. Defer it to the START of the next pass and only when `workspace/findings/` is EMPTY (all findings archived by Stage 15). Applying a target or sync change while findings are in flight would strand those findings against a code root that no longer matches their `discovery_commit`, producing silent wrong results. If `findings/` is non-empty, tell the user you will apply the change at the next boundary and let the current pass finish; if they insist on aborting, run Stage 15 to archive the current findings first, then apply the change at the fresh boundary. 5. **Resilience & Persistence:** When Stage 15 (Archive & KB Verification) completes, immediately begin the next pass. Chain your tool calls automatically. However, if you encounter a permanent, non-recoverable error (e.g., a persistent environment failure or fundamentally broken pipeline state), halt the loop and yield to the user. Try your best to recover from and fix transient issues (like rate limits or temporary file locks) before deciding to halt.