db as source of truth: wiki→seeds, archive old artifacts, knowledge ingestion

- Migrations 010 (content_hash) + 011 (search tsvector column)
- new: internal/knowledge/seed.go — knowledge seed ingest engine
- new: internal/httpapi/knowledge.go — SearchKnowledge + GetEntityKnowledge
- wire knowledge ingest into oikos seed pipeline
- convert all 36 wiki docs + 6 investigations + 12 runbooks → seeds/knowledge.yaml
- archive: knowledge/wiki/→archive/, oikos/cards/→archive/, .hermes/plans/→archive/
- delete: 9 superseded Python kernel files, ledger/, mcp/build_host_files.py
- remove empty knowledge/ directory tree
This commit is contained in:
2026-07-07 20:22:30 +02:00
parent b2bfa26f64
commit 6b75f7302d
125 changed files with 7557 additions and 1938 deletions

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@@ -0,0 +1,142 @@
package httpapi
import (
"context"
"encoding/json"
"github.com/dtoro/oikos/internal/httpapi/gen"
"github.com/google/uuid"
)
func (s *Server) SearchKnowledge(ctx context.Context, request gen.SearchKnowledgeRequestObject) (gen.SearchKnowledgeResponseObject, error) {
q := request.Params.Q
limit := clampLimit(request.Params.Limit)
rows, err := s.pool.Query(ctx, `
SELECT e.slug, COALESCE(et.name,''), ke.title, ke.source, ke.tags,
ts_rank(ke.search, plainto_tsquery('english', $1)) AS rank,
ts_headline('english', ke.content, plainto_tsquery('english', $1),
'MaxWords=40, MinWords=15, ShortWord=3, MaxFragments=3,
FragmentDelimiter=" ... "') AS snippet
FROM knowledge_entities ke
JOIN entities e ON e.id = ke.entity_id
JOIN entity_types et ON et.name = e.type
WHERE ke.search @@ plainto_tsquery('english', $1)
ORDER BY rank DESC
LIMIT $2`,
q, limit)
if err != nil {
return nil, err
}
defer rows.Close()
items := []gen.KnowledgeHit{}
for rows.Next() {
var slug, eType, title, source, tagJSON string
var rank float32
var snippet *string
if err := rows.Scan(&slug, &eType, &title, &source, &tagJSON, &rank, &snippet); err != nil {
return nil, err
}
var tags []string
json.Unmarshal([]byte(tagJSON), &tags)
hitType := gen.Document
switch eType {
case "investigation":
hitType = gen.Investigation
case "runbook":
hitType = gen.Runbook
}
id, _ := uuid.Parse("")
_ = id // not needed for response since we use slug
items = append(items, gen.KnowledgeHit{
Slug: slug,
Title: title,
Type: hitType,
Rank: &rank,
Snippet: snippet,
SourcePath: &source,
})
}
if rows.Err() != nil {
return nil, rows.Err()
}
if items == nil {
items = []gen.KnowledgeHit{}
}
return gen.SearchKnowledge200JSONResponse{Items: items}, nil
}
func (s *Server) GetEntityKnowledge(ctx context.Context, request gen.GetEntityKnowledgeRequestObject) (gen.GetEntityKnowledgeResponseObject, error) {
entitySlug := request.EntityId
rows, err := s.pool.Query(ctx, `
SELECT e.slug, COALESCE(et.name,''), ke.title, ke.source, ke.tags
FROM knowledge_entities ke
JOIN entities e ON e.id = ke.entity_id
JOIN entity_types et ON et.name = e.type
JOIN relationships r ON r.source_id = ke.entity_id
JOIN entities target ON target.id = r.target_id
WHERE target.slug = $1
AND r.valid_to IS NULL
AND r.type IN ('documents', 'about')
UNION
SELECT e.slug, COALESCE(et.name,''), ke.title, ke.source, ke.tags
FROM knowledge_entities ke
JOIN entities e ON e.id = ke.entity_id
JOIN entity_types et ON et.name = e.type
JOIN relationships r ON r.source_id = ke.entity_id
JOIN entity_types target_type ON target_type.name = r.target_id::text
JOIN entities ent ON ent.type = target_type.name AND ent.slug = $1
WHERE r.valid_to IS NULL
AND r.type = 'procedure-for'
ORDER BY 1`,
entitySlug)
if err != nil {
return nil, err
}
defer rows.Close()
items := []gen.KnowledgeHit{}
for rows.Next() {
var slug, eType, title, source, tagJSON string
var tags []string
if err := rows.Scan(&slug, &eType, &title, &source, &tagJSON); err != nil {
return nil, err
}
json.Unmarshal([]byte(tagJSON), &tags)
hitType := gen.Document
switch eType {
case "investigation":
hitType = gen.Investigation
case "runbook":
hitType = gen.Runbook
}
items = append(items, gen.KnowledgeHit{
Slug: slug,
Title: title,
Type: hitType,
SourcePath: &source,
})
}
if rows.Err() != nil {
return nil, rows.Err()
}
if items == nil {
items = []gen.KnowledgeHit{}
}
return gen.GetEntityKnowledge200JSONResponse{Items: items}, nil
}

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@@ -1738,16 +1738,6 @@ func float32Ptr(f float32) *float32 {
return &f
}
// ─── Knowledge (stubs — tables don't exist yet) ────────────────────────
func (s *Server) SearchKnowledge(ctx context.Context, request gen.SearchKnowledgeRequestObject) (gen.SearchKnowledgeResponseObject, error) {
return nil, errNotImplemented
}
func (s *Server) GetEntityKnowledge(ctx context.Context, request gen.GetEntityKnowledgeRequestObject) (gen.GetEntityKnowledgeResponseObject, error) {
return nil, errNotImplemented
}
// ─── Agent Activity (stub) ─────────────────────────────────────────────
func (s *Server) QueryAgentActivity(ctx context.Context, request gen.QueryAgentActivityRequestObject) (gen.QueryAgentActivityResponseObject, error) {

276
internal/knowledge/seed.go Normal file
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@@ -0,0 +1,276 @@
package knowledge
import (
"context"
"crypto/sha256"
"encoding/hex"
"encoding/json"
"fmt"
"github.com/google/uuid"
"github.com/jackc/pgx/v5"
)
type SeedResult struct {
Documents int
Investigations int
Runbooks int
}
func contentHash(s string) string {
h := sha256.Sum256([]byte(s))
return hex.EncodeToString(h[:])
}
func Ingest(ctx context.Context, tx pgx.Tx, data map[string]any) (*SeedResult, error) {
r := &SeedResult{}
docs, _ := data["documents"].([]any)
for _, raw := range docs {
d, _ := raw.(map[string]any)
if err := ingestDocument(ctx, tx, d); err != nil {
return nil, fmt.Errorf("document %v: %w", str(d, "slug"), err)
}
r.Documents++
}
invs, _ := data["investigations"].([]any)
for _, raw := range invs {
m, _ := raw.(map[string]any)
if err := ingestInvestigation(ctx, tx, m); err != nil {
return nil, fmt.Errorf("investigation %v: %w", str(m, "slug"), err)
}
r.Investigations++
}
rbs, _ := data["runbooks"].([]any)
for _, raw := range rbs {
m, _ := raw.(map[string]any)
if err := ingestRunbook(ctx, tx, m); err != nil {
return nil, fmt.Errorf("runbook %v: %w", str(m, "slug"), err)
}
r.Runbooks++
}
return r, nil
}
func str(m map[string]any, key string) string {
s, _ := m[key].(string)
return s
}
func strSlice(m map[string]any, key string) []string {
raw, _ := m[key].([]any)
var out []string
for _, v := range raw {
if s, ok := v.(string); ok {
out = append(out, s)
}
}
return out
}
func mapVal(m map[string]any, key string) map[string]any {
v, _ := m[key].(map[string]any)
return v
}
func ingestDocument(ctx context.Context, tx pgx.Tx, m map[string]any) error {
slug := str(m, "slug")
title := str(m, "title")
content := str(m, "content")
entitySlug := str(m, "entity_slug")
tags := strSlice(m, "tags")
atGlance, _ := m["at_glance"].(map[string]any)
clRaw, _ := m["changelog"].([]any)
entityDocSlug := "document:" + slug
if err := upsertKnowledgeEntity(ctx, tx, entityDocSlug, "document", title, content, slug, tags); err != nil {
return err
}
attrs := map[string]any{}
if len(atGlance) > 0 {
attrs["at_glance"] = atGlance
}
if len(clRaw) > 0 {
attrs["changelog"] = clRaw
}
if len(attrs) > 0 {
attrsBytes, _ := json.Marshal(attrs)
_, err := tx.Exec(ctx,
`UPDATE entities SET attributes = attributes || $1, updated_at = now()
WHERE slug = $2`, string(attrsBytes), entityDocSlug)
if err != nil {
return fmt.Errorf("update document attrs: %w", err)
}
}
if entitySlug != "" {
if err := createEdge(ctx, tx, entityDocSlug, entitySlug, "documents", nil); err != nil {
return fmt.Errorf("link document: %w", err)
}
}
if len(atGlance) > 0 && entitySlug != "" {
backfillAttrs, _ := json.Marshal(atGlance)
_, err := tx.Exec(ctx,
`UPDATE entities SET attributes = $1 || attributes, updated_at = now()
WHERE slug = $2`, string(backfillAttrs), entitySlug)
if err != nil {
return fmt.Errorf("backfill entity attrs: %w", err)
}
}
return nil
}
func ingestInvestigation(ctx context.Context, tx pgx.Tx, m map[string]any) error {
slug := str(m, "slug")
title := str(m, "title")
content := str(m, "content")
date := str(m, "date")
status := str(m, "status")
duration := str(m, "duration")
aboutSlugs := strSlice(m, "about_slugs")
tags := strSlice(m, "tags")
entitySlug := "investigation:" + slug
if err := upsertKnowledgeEntity(ctx, tx, entitySlug, "investigation", title, content, slug, tags); err != nil {
return err
}
attrs := map[string]any{}
if date != "" {
attrs["date"] = date
}
if status != "" {
attrs["status"] = status
}
if duration != "" {
attrs["duration"] = duration
}
if len(attrs) > 0 {
attrsBytes, _ := json.Marshal(attrs)
_, err := tx.Exec(ctx,
`UPDATE entities SET attributes = attributes || $1, updated_at = now()
WHERE slug = $2`, string(attrsBytes), entitySlug)
if err != nil {
return fmt.Errorf("update investigation attrs: %w", err)
}
}
for _, aboutSlug := range aboutSlugs {
if err := createEdge(ctx, tx, entitySlug, aboutSlug, "about", nil); err != nil {
return fmt.Errorf("link investigation about %s: %w", aboutSlug, err)
}
}
return nil
}
func ingestRunbook(ctx context.Context, tx pgx.Tx, m map[string]any) error {
slug := str(m, "slug")
name := str(m, "name")
riskClass := str(m, "risk_class")
entityType := str(m, "entity_type")
content := str(m, "content")
tags := strSlice(m, "tags")
procedure, _ := m["procedure"].(map[string]any)
entitySlug := "runbook:" + slug
if err := upsertKnowledgeEntity(ctx, tx, entitySlug, "runbook", name, content, slug, tags); err != nil {
return err
}
attrs := map[string]any{}
if riskClass != "" {
attrs["risk_class"] = riskClass
}
if len(procedure) > 0 {
attrs["procedure"] = procedure
}
if len(attrs) > 0 {
attrsBytes, _ := json.Marshal(attrs)
_, err := tx.Exec(ctx,
`UPDATE entities SET attributes = attributes || $1, updated_at = now()
WHERE slug = $2`, string(attrsBytes), entitySlug)
if err != nil {
return fmt.Errorf("update runbook attrs: %w", err)
}
}
if entityType != "" {
if err := createEdge(ctx, tx, entitySlug, entityType, "procedure-for", nil); err != nil {
return fmt.Errorf("link runbook: %w", err)
}
}
return nil
}
func upsertKnowledgeEntity(ctx context.Context, tx pgx.Tx, slug, entityType, title, content, source string, tags []string) error {
id, err := getOrCreateEntity(ctx, tx, slug, entityType, title)
if err != nil {
return err
}
hash := contentHash(content)
tagsJSON, _ := json.Marshal(tags)
_, err = tx.Exec(ctx,
`INSERT INTO knowledge_entities (entity_id, title, content, source, tags, content_hash, created_at, updated_at)
VALUES ($1, $2, $3, $4, $5, $6, now(), now())
ON CONFLICT (entity_id) DO UPDATE SET
title = $2, content = $3, source = $4, tags = $5,
content_hash = $6, updated_at = now()`,
id, title, content, source, string(tagsJSON), hash)
return err
}
func getOrCreateEntity(ctx context.Context, tx pgx.Tx, slug, entityType, name string) (uuid.UUID, error) {
var id uuid.UUID
err := tx.QueryRow(ctx, "SELECT id FROM entities WHERE slug = $1", slug).Scan(&id)
if err == nil {
return id, nil
}
if err != pgx.ErrNoRows {
return uuid.Nil, fmt.Errorf("lookup entity %s: %w", slug, err)
}
id, err = uuid.NewV7()
if err != nil {
return uuid.Nil, fmt.Errorf("generate uuid: %w", err)
}
_, err = tx.Exec(ctx,
`INSERT INTO entities (id, slug, type, name, state, attributes, version, created_at, updated_at)
VALUES ($1, $2, $3, $4, NULL, '{}', 1, now(), now())`,
id, slug, entityType, name)
if err != nil {
return uuid.Nil, fmt.Errorf("create entity %s: %w", slug, err)
}
return id, nil
}
func createEdge(ctx context.Context, tx pgx.Tx, sourceSlug, targetSlug, relType string, attrs map[string]any) error {
var sourceID, targetID uuid.UUID
if err := tx.QueryRow(ctx, "SELECT id FROM entities WHERE slug = $1", sourceSlug).Scan(&sourceID); err != nil {
return fmt.Errorf("source %s: %w", sourceSlug, err)
}
if err := tx.QueryRow(ctx, "SELECT id FROM entities WHERE slug = $1", targetSlug).Scan(&targetID); err != nil {
return fmt.Errorf("target %s: %w", targetSlug, err)
}
attrsBytes, _ := json.Marshal(attrs)
_, err := tx.Exec(ctx,
`INSERT INTO relationships (source_id, target_id, type, attributes, valid_from, valid_to)
VALUES ($1, $2, $3, $4, now(), NULL)
ON CONFLICT (source_id, target_id, type) WHERE valid_to IS NULL
DO UPDATE SET attributes = EXCLUDED.attributes`,
sourceID, targetID, relType, string(attrsBytes))
return err
}