dsh-grafana-query

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dsh-grafana-query is a free, open-source, read-only DeepSeek Harness plugin for Grafana. It lets an agent run PromQL through Grafana's data source proxy and read the state of Grafana unified alerting, without changing anything in Grafana.

Not to be confused with dsh-grafana on npm, which is a dashboard editor that writes dashboard JSON back to Grafana. This plugin does the opposite job: read-only metric queries and alert state. Dashboard and panel JSON are explicitly out of scope.

Tools

Tool	Purpose
grafana_health	Check that the instance is reachable and report its version.
grafana_list_datasources	List data sources with uid, type, and access mode. Run this first.
grafana_query	Run an instant PromQL query through the data source proxy.
grafana_query_range	Run a range PromQL query with an enforced step and point budget.
grafana_alert_state	Read the current state of unified alerting rules.
grafana_list_alert_rules	List provisioned alert rule definitions.

All tools are read-only. Version 0.1 never creates, edits, deletes, silences, acknowledges, or pauses anything in Grafana.

Limits

Every limit below is enforced by the plugin, not by Grafana. Whenever something is trimmed, meta.truncated and the pre-truncation totals say so.

Limit	Value
Points per series (max_points)	200 by default, 500 maximum. Prometheus returns both endpoints, so a range of n seconds at step s yields floor(n / s) + 1 points
Range length (grafana_query_range)	31 days
Total points in one range response	20000; series past that are dropped whole, never cut in half
Series per query	maxSeries, 100 by default
Alert rules per tool (grafana_alert_state, grafana_list_alert_rules)	500 matching rules; the rest cannot be reached by paging, so use the filters
Alert instances per rule	10 by default, 50 maximum
Page size	20 by default, 100 maximum
Upstream error text	200 characters, HTTP 400 only

grafana_alert_state returns firing, pending, and unknown rules by default — inactive rules are excluded unless you ask for them with state.

Requirements

• DeepSeek Harness with compatible @deepseek-ai/dsh-tools APIs
• Node.js 22.19 or newer in the 22.x line, or Node.js 24 or newer
• Grafana 9.0 or newer — only the uid data source proxy (/api/datasources/proxy/uid/:uid/*) is supported; the deprecated numeric-id path is not

Configuration

export GRAFANA_URL='https://grafana.example.com'
export GRAFANA_TOKEN='glsa_your_service_account_token'

Field	Environment variable	Default	Range
baseUrl	GRAFANA_URL	required	HTTP(S) URL, no credentials, no query or fragment; a sub-path is fine
token	GRAFANA_TOKEN	required	non-empty
locale	—	en	en, zh-TW, zh-CN, ja
requestTimeoutMs	—	30000	1 – 300000
maxResponseBytes	—	5242880	1 – 52428800
maxSeries	—	100	1 – 1000

Plugin configuration takes precedence over the environment variables.

Permissions

A Grafana service account token (recommended) or a legacy API key both work — they use the same Authorization: Bearer header. A Grafana Cloud Access Policy token (glc_) is for the Cloud data endpoints and does not work with this API.

How to set this up in Grafana

The scope names in the table below are what Grafana checks internally — they are not what you tick in the UI. When you create the service account, the combination that works is:

1. Basic role Viewer — covers datasources:read and datasources:query.
2. Add the fixed role Alerting → Full read-only access — covers alert.rules:read and alert.provisioning:read.

Verified on Grafana Cloud on 2026-08-27 with exactly that combination: all six tools worked. See the verification note.

A least-privilege token stays usable. Grafana filters GET /api/datasources by what the token may reach rather than returning 403, so under a token granted Query on a single data source, grafana_list_datasources returns just that one — measured 2026-08-27: 26 entries for a Viewer token, 1 for the restricted one. You never get a list full of data sources that would fail when queried. (A per-data-source Query grant also implies metadata read on that data source, so there is no "can query but cannot read" state to worry about.)

Scope reference

Tool	Required permission
grafana_health	none — /api/health needs no authentication, so this tool cannot tell you whether the token is valid. Use grafana_list_datasources for that.
grafana_list_datasources	datasources:read
grafana_query, grafana_query_range	datasources:query (plus datasources:read for pre-flight type checks)
grafana_alert_state	alert.rules:read
grafana_list_alert_rules	alert.provisioning:read

Grafana Cloud

Point baseUrl at the stack itself and use a service account token created in that stack:

export GRAFANA_URL='https://your-stack.grafana.net'
export GRAFANA_TOKEN='glsa_your_service_account_token'

Do not use a glc_ Access Policy token here. Cloud stacks ship many built-in data sources, so use the type and name_contains filters of grafana_list_datasources to keep the list short.

Install

bun add dsh-grafana-query

The package ships cordis.patch.yml, declared through dsh.bundle.patch in package.json, so the DeepSeek Harness registry can load the plugin with its default configuration.

Examples

1. grafana_list_datasources with {"type": "prometheus"} to find the uid.
2. grafana_query with {"datasource_uid": "prom-1", "query": "up"} for the current value.
3. grafana_query_range with {"datasource_uid": "prom-1", "query": "rate(node_cpu_seconds_total[5m])", "start": "...", "end": "..."} for the trend. Omit step and the plugin picks one so each series stays within max_points.
4. grafana_alert_state with no arguments to see what is firing right now.

Internationalization

Set locale to en, zh-TW, zh-CN, or ja to change the tool and parameter descriptions the model sees. Tool names always stay in English, and error messages are always in English.

Security and error behavior

• Every tool is read-only.
• Errors never contain the token, the Authorization header, or a raw response body.
• The single exception: when Prometheus rejects a query with HTTP 400, the structured error field is passed through so the agent can fix its PromQL. It is capped at 200 characters and runs through a redaction pass first. Every other status code returns a static message.
• Responses are bounded by maxResponseBytes, maxSeries, and a per-series point budget. Whenever anything is trimmed, meta.truncated and the pre-truncation totals say so.

Development

bun install
bun run lint
bun run typecheck
bun run test
bun run build

License

MIT