# insert_after_marker

Safely insert text after an exact marker in a text file.

Agent View of the PolicyLayer registry record for `insert_after_marker`. HTML page: https://policylayer.com/tools/mapi-agent-memory/insert-after-marker

## Facts

- Tool: `insert_after_marker`
- Server: Mapi Agent Memory (`cabo0m/mapi-agent-memory`) — https://policylayer.com/tools/mapi-agent-memory.md
- Homepage: https://github.com/cabo0m/mapi-agent-memory
- Risk category: Write (Medium risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Rate-limited

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "insert_after_marker",
    "arguments": {}
  }
}
```

## Why insert_after_marker is rated Medium

The tool modifies file contents by inserting text at a specified location. While the operation is reversible (text can be edited or deleted later), it alters stored data. Given the agent memory context and potential for inserting malicious content, unintended governance data, or critical system information into memory files, severity is high.

From the tool's own definition: "Tool inserts text into a file. Description states 'insert text after an exact marker in a text file.' This is a file modification operation that creates or appends content, matching the Write category definition: 'creates or modifies data reversibly.'"

## Use case

AI agents use insert_after_marker to create or update resources in Mapi Agent Memory, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Mapi Agent Memory environment.

## Recommended policy (PolicyLayer)

Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Mapi Agent Memory:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "insert_after_marker": {
      "limits": [
        {
          "counter": "insert_after_marker_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on Mapi Agent Memory (251)

- `delete_path` — Destructive — https://policylayer.com/tools/mapi-agent-memory/delete-path.md
- `expire_memory_capture_item` — Destructive — https://policylayer.com/tools/mapi-agent-memory/expire-memory-capture-item.md
- `gemma_worker_cancel_job` — Destructive — https://policylayer.com/tools/mapi-agent-memory/gemma-worker-cancel-job.md
- `rollback_memory_pointer_lifecycle_remediation_execution` — Destructive — https://policylayer.com/tools/mapi-agent-memory/rollback-memory-pointer-lifecycle-remediation-execution.md
- `apply_escalation_reactions` — Execute — https://policylayer.com/tools/mapi-agent-memory/apply-escalation-reactions.md
- `apply_memory_lifecycle_remediation` — Execute — https://policylayer.com/tools/mapi-agent-memory/apply-memory-lifecycle-remediation.md
- `apply_memory_pointer_lifecycle_remediation_execution` — Execute — https://policylayer.com/tools/mapi-agent-memory/apply-memory-pointer-lifecycle-remediation-execution.md
- `backfill_semantic_embeddings` — Execute — https://policylayer.com/tools/mapi-agent-memory/backfill-semantic-embeddings.md
- `gemma_lms_load` — Execute — https://policylayer.com/tools/mapi-agent-memory/gemma-lms-load.md
- `gemma_lms_unload` — Execute — https://policylayer.com/tools/mapi-agent-memory/gemma-lms-unload.md
- `gemma_worker_run_job` — Execute — https://policylayer.com/tools/mapi-agent-memory/gemma-worker-run-job.md
- `gemma_worker_run_task` — Execute — https://policylayer.com/tools/mapi-agent-memory/gemma-worker-run-task.md
- `git_push` — Execute — https://policylayer.com/tools/mapi-agent-memory/git-push.md
- `git_status` — Execute — https://policylayer.com/tools/mapi-agent-memory/git-status.md
- `preview_memory_pointer_lifecycle_remediation_execution_rollback` — Execute — https://policylayer.com/tools/mapi-agent-memory/preview-memory-pointer-lifecycle-remediation-execution-rollback.md
- `preview_undo_run` — Execute — https://policylayer.com/tools/mapi-agent-memory/preview-undo-run.md
- `query_sql` — Execute — https://policylayer.com/tools/mapi-agent-memory/query-sql.md
- `rollback_memory_hygiene_run` — Execute — https://policylayer.com/tools/mapi-agent-memory/rollback-memory-hygiene-run.md
- `rollback_memory_lifecycle_remediation` — Execute — https://policylayer.com/tools/mapi-agent-memory/rollback-memory-lifecycle-remediation.md
- `rollback_memory_supersession_run` — Execute — https://policylayer.com/tools/mapi-agent-memory/rollback-memory-supersession-run.md
- `run_conflicts_v1` — Execute — https://policylayer.com/tools/mapi-agent-memory/run-conflicts-v1.md
- `run_consolidation_v1` — Execute — https://policylayer.com/tools/mapi-agent-memory/run-consolidation-v1.md
- `run_escalation_check` — Execute — https://policylayer.com/tools/mapi-agent-memory/run-escalation-check.md
- `run_powershell` — Execute — https://policylayer.com/tools/mapi-agent-memory/run-powershell.md
- `run_pytest` — Execute — https://policylayer.com/tools/mapi-agent-memory/run-pytest.md
- `run_sandman_ai` — Execute — https://policylayer.com/tools/mapi-agent-memory/run-sandman-ai.md
- `run_sandman_gemma_hygiene` — Execute — https://policylayer.com/tools/mapi-agent-memory/run-sandman-gemma-hygiene.md
- `run_sandman_quality_hygiene` — Execute — https://policylayer.com/tools/mapi-agent-memory/run-sandman-quality-hygiene.md
- `run_sandman_v1` — Execute — https://policylayer.com/tools/mapi-agent-memory/run-sandman-v1.md
- `run_workshop_action` — Execute — https://policylayer.com/tools/mapi-agent-memory/run-workshop-action.md
- …and 221 more: https://policylayer.com/tools/mapi-agent-memory.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=mapi-agent-memory · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/mapi-agent-memory