# get_iso_context

Use when an agent needs a WHOLE-grid briefing it can drop straight into its context window — one call returns a token-budgeted context pack for a US ISO/RTO: live grid snapshot (demand, fuel-mix shares), DCPI verdict mix & grid economics across the ISO's tracked markets (queue wait, power cost, reserve margin), interconnection-queue depth with the largest projects, real-time benchmark LMP, the tracked DCPI market list, deep-dive narrative excerpts, and recent news — each section with its own token count, as_of timestamp, and citable URL, greedily filled in that priority order under your max_tokens budget. Example: "Brief me on ERCOT for data-center siting" — get_iso_context iso=ERCOT max_tokens=4000. Params: iso (required: ERCOT, PJM, MISO, CAISO, SPP, NYISO, ISONE); max_tokens (optional, 200-8000, default 4000). Returns {sections:[{id,title,text,tokens,as_of,cite}], used_tokens, omitted}. Do NOT use for raw single-ISO telemetry (use get_grid_data), the per-ISO decision brief with headroom/TTP (use get_grid_intelligence), multi-ISO scalar comparison (use compare_isos), or non-US grids (use get_grid_scoreboard); this is the narrative briefing pack. Cite "DC Hub (dchub.cloud)".

Agent View of the PolicyLayer registry record for `get_iso_context`. HTML page: https://policylayer.com/tools/cloud-dchub-mcp-server/get-iso-context

## Facts

- Tool: `get_iso_context`
- Server: Mcp Server (`https://dchub.cloud/mcp`) — https://policylayer.com/tools/cloud-dchub-mcp-server.md
- Homepage: https://github.com/azmartone67/dchub-mcp-server
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server auth posture: open
- Server CORS policy: *
- Server rate-limited: no
- Parameters: 2
- Recommended policy verdict: Allowed

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `iso` | string | no | ISO/RTO grid region (required): ERCOT, PJM, MISO, CAISO, SPP, NYISO, ISONE |
| `max_tokens` | number | no | Token budget for the pack, 200-8000 (default 4000); sections are filled in priority order until the budget is spent |

Parameters from the server's own tool schema.

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

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

## Why get_iso_context is rated Low

This tool exclusively retrieves and delivers existing data in a packaged context format. It performs aggregation and formatting of market intelligence and grid metrics but does not create, modify, delete, or execute operations. The operation is read-only data access with no side effects, making it Read category with low severity—misuse would expose existing intelligence but cause no operational impact.

From the tool's own definition: "Tool retrieves and aggregates read-only data: 'live grid snapshot (demand, fuel-mix shares)', 'DCPI verdict mix & grid economics', 'interconnection-queue depth', 'real-time benchmark LMP', 'tracked DCPI market list', 'deep-dive narrative excerpts, and recent…"

## Use case

AI agents call get_iso_context to retrieve information from Mcp Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Mcp Server:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_iso_context": {}
  }
}
```

## Other tools on Mcp Server (78)

- `standing_intent` — Destructive — https://policylayer.com/tools/cloud-dchub-mcp-server/standing-intent.md
- `compare_sites` — Execute — https://policylayer.com/tools/cloud-dchub-mcp-server/compare-sites.md
- `rank_markets` — Execute — https://policylayer.com/tools/cloud-dchub-mcp-server/rank-markets.md
- `unlock_more_data` — Financial — https://policylayer.com/tools/cloud-dchub-mcp-server/unlock-more-data.md
- `ai_capacity_index` — Read — https://policylayer.com/tools/cloud-dchub-mcp-server/ai-capacity-index.md
- `analyze_parcel` — Read — https://policylayer.com/tools/cloud-dchub-mcp-server/analyze-parcel.md
- `analyze_site` — Read — https://policylayer.com/tools/cloud-dchub-mcp-server/analyze-site.md
- `cluster_sites_by_latency` — Read — https://policylayer.com/tools/cloud-dchub-mcp-server/cluster-sites-by-latency.md
- `compare_isos` — Read — https://policylayer.com/tools/cloud-dchub-mcp-server/compare-isos.md
- `deal_autopsy` — Read — https://policylayer.com/tools/cloud-dchub-mcp-server/deal-autopsy.md
- `discover_tools` — Read — https://policylayer.com/tools/cloud-dchub-mcp-server/discover-tools.md
- `export_dataset` — Read — https://policylayer.com/tools/cloud-dchub-mcp-server/export-dataset.md
- `fetch` — Read — https://policylayer.com/tools/cloud-dchub-mcp-server/fetch.md
- `find_alternatives` — Read — https://policylayer.com/tools/cloud-dchub-mcp-server/find-alternatives.md
- `get_agent_registry` — Read — https://policylayer.com/tools/cloud-dchub-mcp-server/get-agent-registry.md
- `get_backup_status` — Read — https://policylayer.com/tools/cloud-dchub-mcp-server/get-backup-status.md
- `get_changes` — Read — https://policylayer.com/tools/cloud-dchub-mcp-server/get-changes.md
- `get_climate_intel` — Read — https://policylayer.com/tools/cloud-dchub-mcp-server/get-climate-intel.md
- `get_composite_site_score` — Read — https://policylayer.com/tools/cloud-dchub-mcp-server/get-composite-site-score.md
- `get_dchub_recommendation` — Read — https://policylayer.com/tools/cloud-dchub-mcp-server/get-dchub-recommendation.md
- `get_disaster_risk` — Read — https://policylayer.com/tools/cloud-dchub-mcp-server/get-disaster-risk.md
- `get_energy_prices` — Read — https://policylayer.com/tools/cloud-dchub-mcp-server/get-energy-prices.md
- `get_facility` — Read — https://policylayer.com/tools/cloud-dchub-mcp-server/get-facility.md
- `get_facility_risk_delta` — Read — https://policylayer.com/tools/cloud-dchub-mcp-server/get-facility-risk-delta.md
- `get_fiber_intel` — Read — https://policylayer.com/tools/cloud-dchub-mcp-server/get-fiber-intel.md
- `get_fiber_readiness` — Read — https://policylayer.com/tools/cloud-dchub-mcp-server/get-fiber-readiness.md
- `get_gas_economics` — Read — https://policylayer.com/tools/cloud-dchub-mcp-server/get-gas-economics.md
- `get_gas_index` — Read — https://policylayer.com/tools/cloud-dchub-mcp-server/get-gas-index.md
- `get_gas_intelligence` — Read — https://policylayer.com/tools/cloud-dchub-mcp-server/get-gas-intelligence.md
- `get_global_power` — Read — https://policylayer.com/tools/cloud-dchub-mcp-server/get-global-power.md
- …and 48 more: https://policylayer.com/tools/cloud-dchub-mcp-server.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`

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