Files
oikos/.agents/skills/incident-investigation/SKILL.md
dtoro b5c1247093 docs: streamline & consolidate the tree (phase 6)
Problem: after the wiki-hq reorg, agent-instruction and human-doc domains
were still scattered across the repo root, with three now-redundant stub
files cluttering it. The organizing principle wasn't visible in the layout.

Change — enforce three clear buckets:
- .agents/  = how agents operate: OIKOS.md, HERMES.md (moved from root),
  shared/ conventions, domains/ schemas, skills/, and operations/ (operator
  cheatsheet + enrollment + hermes-agent, moved from root).
- knowledge/ = what exists + evidence: wiki/, GLOSSARY.md, and sources/ now
  including investigations/ (incident records are evidence/sources).
- root = substrate + two entry points (AGENTS.md, README.md), plus plans/
  as its own design-intent domain.

Moves:
- investigations/ -> knowledge/sources/investigations/ (incl. archive/, index).
- operations/ -> .agents/operations/.
- HERMES.md -> .agents/HERMES.md.
- Deleted unreferenced root stubs CAVEMAN.md, CONTRIBUTING.md, and OIKOS.md
  (its 7 remaining linkers repointed to .agents/OIKOS.md).

Consumers updated:
- inventory.yaml doc_page (agent-enrollment) + regenerated hosts/*.yaml + cards.
- tools/setup-hermes-soul.sh and bootstrap.sh (x2) -> .agents/HERMES.md.
- bin/homelab help string -> .agents/operations/hermes-agent.md.
- knowledge/operations schemas, llm-wiki, page-templates, incident-investigation
  skill, AGENTS.md/README nav -> new investigations/operations paths.
- All markdown links rewritten via the path-resolving mapper.

Left in place (substrate/executable/separate-domain): hosts/, ledger/, tools/,
plans/, oikos/, mcp/, secrets/, bin/, inventory.yaml.

Verification: docs-lint at baseline (2 intentional cross-repo refs, no new
breakage); gen-topology.py --check exit 0; build_host_files.py idempotent; all
doc_page targets resolve; Hermes provisioning scripts point at the new path.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-06 18:12:14 +02:00

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1.6 KiB
Markdown

---
name: incident-investigation
risk_class: read_only
inputs: [symptom, affected_entity]
verification: "n/a — investigation produces a written record, not a state change"
docs_update_checklist: [investigations_entry]
---
# Incident investigation
Goal: understand what broke and why, before touching anything.
1. `homelab service <name> explain` (or `homelab node <name> relations`
if the affected entity is a host) — get the blast radius and doc
pointer first. Don't start pulling logs blind.
2. `homelab service <name> health` + `homelab service <name> log` (or
MCP `get_service_status` / `tail_log`) for the affected service.
3. Walk the blast radius: is a shared dependency down (`caddy`, `dns`,
`authentik`, or the backend host itself)? `homelab node <name>
relations` shows "affected by" — check those first.
4. `homelab apt-audit` if the symptom looks like a dpkg/upgrade
interaction.
5. Check the change ledger for recent mutations to the affected entity
or anything upstream of it: `homelab service <name> history` (once
populated) or grep `ledger/*.jsonl`.
6. Write findings to a new `knowledge/sources/investigations/<date>-<slug>.md` — symptom,
timeline, root cause, fix applied, prevention. This is the durable
record; don't rely on chat history.
Docs-update checklist: always create the investigation entry. If the
root cause was stale/wrong inventory data (a `doc_page`, `config_repo`,
or `backend` that didn't match reality — this happened during Week 1
kernel work, see the `authentik` backend fix), correct `inventory.yaml`
in the same session.