markusleben
Registry indexed
energy
Use when analyzing Home Assistant energy data — consumption, solar production, battery, grid costs, per-device usage — or safely editing Energy dashboard sources and tracked devices through HA NOVA Relay.
Registry indexed
Use when analyzing Home Assistant energy data — consumption, solar production, battery, grid costs, per-device usage — or safely editing Energy dashboard sources and tracked devices through HA NOVA Relay.
Use when analyzing Home Assistant energy data — consumption, solar production, battery, grid costs, per-device usage — or safely editing Energy dashboard sources and tracked devices through HA NOVA Relay.
Source documentation, not instructions for this website. Review permissions before running any commands.
Analysis (read-only):
energy/validate)Config (gated writes):
energy/save_prefsNot in scope:
ha-nova:dashboard)ha-nova:history)ha-nova:maintenanceha-nova:helper, type integration)Read and follow ../ha-nova/session-bootstrap.md.
Verify relay CLI: ha-nova relay health
If this fails: ha-nova setup
File-based requests: ha-nova relay ws --data-file <payload-file>; --out <result-file> for large responses. WS body: .data (skills/ha-nova/relay-api.md → Standard Envelope).
Schemas, KPI formulas, and analysis recipes: skills/energy/energy-reference.md — read it before any config write or KPI computation.
WS {"type":"energy/get_prefs"} → sources + tracked devices. Error ERR_NOT_FOUND ("No prefs") means the dashboard was never configured — offer initial setup instead of failing. Report grouped: sources first (grid/solar/battery/gas/water), then devices (count + notable entries). Run WS {"type":"energy/validate"} in the same pass; its issue lists are parallel to config order — map every issue to its source/device and name the concrete fix (issue table in the reference).
Resolve statistic IDs from prefs, then query recorder/statistics_during_period with types:["change"] and units:{"energy":"kWh"} over a bounded window (default: last 30 days). Follow the statistics contract in the reference exactly: HA-local day boundaries (weeks start Monday), ms-epoch timestamps, missing buckets count as 0, negative change is legal, 5minute period only reaches back ~10 days.
Compute KPIs with the formulas in the reference so numbers match the HA UI; label documented approximations as such. Present cost figures as estimates — HA cost math never equals the utility bill (standing charges, VAT, official metering).
Never: diff raw total_increasing states (use statistics change), report peak watts from energy-only statistics (only hourly averages exist — say so), present a partial day/month as a complete period (label it and compare like-for-like), or rebuild an EV manager's session history (evcc and similar expose their own statistics entities — read those).
energy/get_prefs immediately before composing the save — never reuse an earlier read.flow_from present = legacy nested; flat keys = HA 2026.3+). Emit the same generation; never mix. With no existing grid source to detect from, pick by HA version (GET /api/config → version; 2026.3+ = flat, else legacy). Preserve every field you do not edit verbatim, including unknown keys (power_config, stat_soc, name).save_prefs replaces the entire list for every key present — send only the top-level keys you touched, each as its complete list (canonical payload in the reference).get_prefs read (category energy, fixed name auto-prefs — the prefs are one document without item ids; skills/ha-nova/config-snapshots.md; on capture failure follow its capture-failure stop). Then run the drift check before applying (skills/ha-nova/write-safety.md → Drift check before apply): re-read get_prefs immediately before the save and compare it against the basis this preview was composed from. On first-time setup the basis is absence: a second ERR_NOT_FOUND means nothing changed and the save proceeds, while prefs that exist now expire the confirmation. On any other foreign change STOP — the confirmation expired, recompose and preview again. save_prefs replaces whole lists with no locking, so a source another client added in the meantime would vanish without a trace. Then WS energy/save_prefs (fails unless the App's configured HA token has admin rights).get_prefs (the save response echoes the new prefs — still re-read), confirm the invariant and that every untouched entry is deep-equal to the fresh pre-save read, then run energy/validate — a successful save does NOT prove the config works (dangling statistic IDs are accepted silently). Mention that other open dashboard tabs need a reload.Initial setup after ERR_NOT_FOUND: treat every list as empty — compose only the keys being populated (count before = 0) and continue at step 4.
Write guards (schema details in the reference):
cost_adjustment_day (default 0); at most one of entity_energy_price/number_energy_price per direction: in the ID) unless stat_cost is already set — HA 2026.4+ rejects the savestat_cost — leave it null with a price field set and HA creates the cost sensor itself; resolve actual cost statistics via energy/info → cost_sensorsincluded_in_stat must reference a stat_consumption present in the same list, without cycles — HA does not validate thisrecorder/list_statistic_ids), should belong to a live entity (validate reports entity_not_defined otherwise), and must meet the sensor prerequisites in the issue tableERR_NOT_FOUND on get_prefs: unconfigured dashboard, not a failure.skills/ha-nova/relay-api.md → Error Handling.Apply skills/ha-nova/output-rules.md. Write previews, delete confirmations, and results render as the Cards defined there.
Energy / StatusPlanned changeOptionsVerificationNext stepUse stable localized slot labels in this order; omit empty slots. Analysis answers render the Report shape; rankings render the List Frame (output-rules.md) — never raw JSON.
Preview before write: nothing is saved until the user confirms the shown preview.
Confirmation binds to the displayed preview and expires on any change to target, payload, endpoint, or scope (context skill → Active Preview Confirmation).
Pre-preview phrases ("do it", "go ahead", "implement the plan") authorize drafting and preview only — never the write itself.
Delete and destructive operations require the typed confirmation code confirm:<token> verbatim; "yes" or any natural-language reply is invalid.
Never guess entity, service, or config IDs — resolve them or ask.
Home Assistant is reached exclusively through ha-nova relay.
For any HA write this skill does not cover, STOP and invoke ha-nova:fallback first — never probe unfamiliar write endpoints.
Drafts follow skills/ha-nova/smallest-solution.md: the complete requested outcome in the simplest safe design, nothing for hypothetical future needs.
Config writes: preview + confirmation per save (natural for single edits; typed confirmation code for empty/wholesale-replace saves — step 5); verify by read-back + validate.
No update-revert — recovery after an entry-removing save is the auto-prefs config snapshot (restore = corrective save_prefs of the loaded document, skills/ha-nova/config-snapshots.md); otherwise a corrective save or HA Backups (see skills/ha-nova/write-safety.md).
Analysis flows are strictly read-only; never call save_prefs while answering an analysis question.
name: energy description: Use when analyzing Home Assistant energy data — consumption, solar production, battery, grid costs, per-device usage — or safely editing Energy dashboard sources and tracked devices through HA NOVA Relay. license: MIT compatibility: Requires the ha-nova CLI (run 'ha-nova setup' first) and the HA NOVA Relay in Home Assistant (App, or standalone container on Container/Core).
---
name: energy
description: Use when analyzing Home Assistant energy data — consumption, solar production, battery, grid costs, per-device usage — or safely editing Energy dashboard sources and tracked devices through HA NOVA Relay.
license: MIT
compatibility: Requires the ha-nova CLI (run 'ha-nova setup' first) and the HA NOVA Relay in Home Assistant (App, or standalone container on Container/Core).
---
# HA NOVA Energy
## Scope
Analysis (read-only):
- energy config overview + misconfiguration triage (`energy/validate`)
- consumption/production/cost reports over bounded periods
- per-device ranking and cost (fixed or dynamic prices)
- solar/battery/grid KPIs: self-sufficiency, self-consumption, battery round-trip
- period comparisons (previous period, same period last year)
Config (gated writes):
- add/update/remove energy sources and tracked devices via `energy/save_prefs`
Not in scope:
- dashboard cards/views (`ha-nova:dashboard`)
- generic entity history/logbook (`ha-nova:history`)
- statistics repair (sum spikes, orphaned statistics): `ha-nova:maintenance`
- creating sensors or integrations that produce new energy data (energy sensor from a power sensor → `ha-nova:helper`, type `integration`)
## Bootstrap (once per session)
Read and follow `../ha-nova/session-bootstrap.md`.
Verify relay CLI: `ha-nova relay health`
If this fails: `ha-nova setup`
## Relay Contract
File-based requests: `ha-nova relay ws --data-file <payload-file>`; `--out <result-file>` for large responses. WS body: `.data` (`skills/ha-nova/relay-api.md` → Standard Envelope).
Schemas, KPI formulas, and analysis recipes: `skills/energy/energy-reference.md` — read it before any config write or KPI computation.
## Flow
### Overview
WS `{"type":"energy/get_prefs"}` → sources + tracked devices. Error `ERR_NOT_FOUND` ("No prefs") means the dashboard was never configured — offer initial setup instead of failing. Report grouped: sources first (grid/solar/battery/gas/water), then devices (count + notable entries). Run WS `{"type":"energy/validate"}` in the same pass; its issue lists are parallel to config order — map every issue to its source/device and name the concrete fix (issue table in the reference).
### Analysis
Resolve statistic IDs from prefs, then query `recorder/statistics_during_period` with `types:["change"]` and `units:{"energy":"kWh"}` over a bounded window (default: last 30 days). Follow the statistics contract in the reference exactly: HA-local day boundaries (weeks start Monday), ms-epoch timestamps, missing buckets count as 0, negative change is legal, `5minute` period only reaches back ~10 days.
Compute KPIs with the formulas in the reference so numbers match the HA UI; label documented approximations as such. Present cost figures as estimates — HA cost math never equals the utility bill (standing charges, VAT, official metering).
Never: diff raw `total_increasing` states (use statistics `change`), report peak watts from energy-only statistics (only hourly averages exist — say so), present a partial day/month as a complete period (label it and compare like-for-like), or rebuild an EV manager's session history (evcc and similar expose their own statistics entities — read those).
### Config edit (read → merge → save)
1. Fresh `energy/get_prefs` immediately before composing the save — never reuse an earlier read.
2. Detect the grid schema generation from the data (`flow_from` present = legacy nested; flat keys = HA 2026.3+). Emit the same generation; never mix. With no existing grid source to detect from, pick by HA version (`GET /api/config` → `version`; 2026.3+ = flat, else legacy). Preserve every field you do not edit verbatim, including unknown keys (`power_config`, `stat_soc`, `name`).
3. Mutate the returned list. `save_prefs` replaces the entire list for every key present — send only the top-level keys you touched, each as its complete list (canonical payload in the reference).
4. Preview the planned change: the exact entries added/changed/removed plus the count invariant (count before ± changes = count after). Say explicitly: removing a device stops tracking only — its recorded statistics stay.
5. Confirmation bound to this exact preview (context skill → Active Preview Confirmation): natural for a single add/change/remove; a save that empties or wholesale-replaces a list on a configured instance is destructive — typed confirmation code (context skill → Confirmation Tiers). Before any save that REMOVES entries (a single source/device removal included) or empties/wholesale-replaces a list, capture the auto config snapshot of the fresh pre-save `get_prefs` read (category `energy`, fixed name `auto-prefs` — the prefs are one document without item ids; `skills/ha-nova/config-snapshots.md`; on capture failure follow its capture-failure stop). Then run the drift check before applying (`skills/ha-nova/write-safety.md` → Drift check before apply): re-read `get_prefs` immediately before the save and compare it against the basis this preview was composed from. On first-time setup the basis is absence: a second `ERR_NOT_FOUND` means nothing changed and the save proceeds, while prefs that exist now expire the confirmation. On any other foreign change STOP — the confirmation expired, recompose and preview again. `save_prefs` replaces whole lists with no locking, so a source another client added in the meantime would vanish without a trace. Then WS `energy/save_prefs` (fails unless the App's configured HA token has admin rights).
6. Verify: re-read `get_prefs` (the save response echoes the new prefs — still re-read), confirm the invariant and that every untouched entry is deep-equal to the fresh pre-save read, then run `energy/validate` — a successful save does NOT prove the config works (dangling statistic IDs are accepted silently). Mention that other open dashboard tabs need a reload.
Initial setup after `ERR_NOT_FOUND`: treat every list as empty — compose only the keys being populated (count before = 0) and continue at step 4.
Write guards (schema details in the reference):
- every grid source needs `cost_adjustment_day` (default `0`); at most one of `entity_energy_price`/`number_energy_price` per direction
- never set price fields on an external statistic (`:` in the ID) unless `stat_cost` is already set — HA 2026.4+ rejects the save
- never invent `stat_cost` — leave it `null` with a price field set and HA creates the cost sensor itself; resolve actual cost statistics via `energy/info` → `cost_sensors`
- `included_in_stat` must reference a `stat_consumption` present in the same list, without cycles — HA does not validate this
- referenced statistics must exist (`recorder/list_statistic_ids`), should belong to a live entity (validate reports `entity_not_defined` otherwise), and must meet the sensor prerequisites in the issue table
## Error Handling
- `ERR_NOT_FOUND` on `get_prefs`: unconfigured dashboard, not a failure.
- Save rejected: report HA's message verbatim; re-read prefs before any retry — another client may have written meanwhile.
- Full relay error taxonomy: `skills/ha-nova/relay-api.md` → Error Handling.
## Output Format
Apply `skills/ha-nova/output-rules.md`. Write previews, delete confirmations, and results render as the Cards defined there.
- `Energy` / `Status`
- `Planned change`
- `Options`
- `Verification`
- `Next step`
Use stable localized slot labels in this order; omit empty slots. Analysis answers render the Report shape; rankings render the List Frame (output-rules.md) — never raw JSON.
## Safety
- Preview before write: nothing is saved until the user confirms the shown preview.
- Confirmation binds to the displayed preview and expires on any change to target, payload, endpoint, or scope (context skill → Active Preview Confirmation).
- Pre-preview phrases ("do it", "go ahead", "implement the plan") authorize drafting and preview only — never the write itself.
- Delete and destructive operations require the typed confirmation code `confirm:<token>` verbatim; "yes" or any natural-language reply is invalid.
- Never guess entity, service, or config IDs — resolve them or ask.
- Home Assistant is reached exclusively through `ha-nova relay`.
- For any HA write this skill does not cover, STOP and invoke `ha-nova:fallback` first — never probe unfamiliar write endpoints.
- Drafts follow `skills/ha-nova/smallest-solution.md`: the complete requested outcome in the simplest safe design, nothing for hypothetical future needs.
- Config writes: preview + confirmation per save (natural for single edits; typed confirmation code for empty/wholesale-replace saves — step 5); verify by read-back + validate.
- No update-revert — recovery after an entry-removing save is the `auto-prefs` config snapshot (restore = corrective `save_prefs` of the loaded document, `skills/ha-nova/config-snapshots.md`); otherwise a corrective save or HA Backups (see `skills/ha-nova/write-safety.md`).
- Analysis flows are strictly read-only; never call `save_prefs` while answering an analysis question.
Skill source recorded
Skill instructions are recorded. This is not a runtime test, safety guarantee or compatibility certification.
Review before install: Avoid automatic install
License: MIT
Listed tools are metadata hints, not tested compatibility. Agent prompts are suggested handoffs.
Repository metadata and review signals are advisory. Popularity, source discovery and successful execution are different facts.
Version reported in registry metadata; check source releases before relying on it.
Quality
55/100
Promising
Trust
57/100
This page exposes the same decision, trust, audit, use-case, and install signals through the Registry API, so agents can rank this skill without scraping the UI.
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"web": "https://www.openagentskill.com/skills/markusleben-energy",
"api": "https://www.openagentskill.com/api/agent/skills/markusleben-energy",
"audit": "https://www.openagentskill.com/skills/markusleben-energy/audit",
"eval": "https://www.openagentskill.com/api/agent/evals?slug=markusleben-energy&task=Use%20energy%20in%20an%20agent%20workflow&max_risk=medium",
"resolve": "https://www.openagentskill.com/api/agent/resolve?task=Use%20energy%20in%20an%20agent%20workflow&agent=codex&max_risk=medium",
"receipt": "https://www.openagentskill.com/api/agent/receipt?task=Use%20energy%20in%20an%20agent%20workflow&agent=codex&max_risk=medium&format=text",
"install": "https://www.openagentskill.com/api/skills/markusleben-energy/install",
"manifest": "https://www.openagentskill.com/api/registry/manifest/markusleben-energy"
}
}Listing source
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Do not auto-install
Audit
70/100
Needs review
Copies are not installs. Installation counts require a reported successful installation; they are not a blanket quality guarantee.