Skill System Evolution

Version-controlled evolution engine that uses insight results to evolve soul profiles and workflow recipes.

This skill is the ACT half of the system: it reads accumulated observation data, decides changes that are justified by evidence, applies them conservatively, and records a versioned snapshot for every change.

Key Concepts

Insight = OBSERVE
- Extract facets from sessions and accumulate buffers.
- This is handled by
```
skill-system-insight
```
  .
Evolution = ACT
- Read accumulated data and decide changes.
- Apply changes with strong evidence only.
- Always version and store an audit snapshot.
Every evolution creates a versioned snapshot
- No mutation without a recorded snapshot.
- Snapshots are stored in Postgres (
```
agent_memories
```
  ) and can be listed/rolled back.
Users can list, compare, rollback, and pin versions
- ```
list-versions
```
  provides the history.
- ```
rollback
```
  restores a prior snapshot (and records the rollback as its own snapshot).
- Pinning is represented as an additional tag on the snapshot (e.g.,
```
pin:true
```
  ) or as a separate memory record (implementation choice for the operator).

Architecture

Reads

Insight facets:

agent_memories.category = 'insight-facet'

Tags include
```
user:<user>
```

Soul state (dual matrix):

```
agent_memories.category = 'soul-state'
```
Tags include
```
user:<user>
```
and
```
matrix
```

Writes

Evolution snapshots:
- ```
agent_memories.category = 'evolution-snapshot'
```
- Each snapshot stores the full artifact YAML/markdown in
```
snapshot_data
```
Soul profiles (filesystem):
- ```
../skill-system-soul/profiles/<user>.md
```

Workflow recipes (filesystem):

../skill-system-workflow/recipes/*.yaml

(or

.yml

)

Version tags

Version tag format:

v{N}_{target}_{timestamp}

Example:

v3_soul_20260211

Recommended versioning algorithm per user+target:

Let

N = 1 + max(existing N)

for snapshots with tags

user:<user>

and

target:<target>

If none exist, start at
```
N = 1
```
.
Timestamp uses local date (YYYYMMDD) unless you need time disambiguation; if you do, append
```
_HHMM
```
.

Operational Constraints

Max 1 evolution pass per day per user.
- Applies across targets (soul/recipe/both). Use the most recent
```
evolution-snapshot
```
  date as the limiter.
Transparency: always explain what changed and why.
- Every proposed change must include evidence strings from facets or state context.
Safety: cannot remove core safety constraints from soul profiles.
- The evolved profile must retain baseline safety expectations: honest uncertainty, no hallucinated authority, and refusal of harmful/illegal instructions.
User approval: major changes require confirmation.
- If any proposed personality dimension change has
```
abs(proposed_value - current_value) > 0.5
```
  , do not apply automatically.
- Instead, produce an evolution plan and ask for explicit approval.

Relationship to

skill-system-insight

For new installations,

skill-system-evolution

supersedes the insight skill's synthesis operation:

```
skill-system-insight
```
remains the source of facets and matrix updates.
Layer 3 profile generation (synthesis) is performed and versioned here, so changes are auditable and reversible.

Storage Pattern (agent_memories)

Evolution snapshots are stored as episodic memories:

```
memory_type = 'episodic'
```
```
category = 'evolution-snapshot'
```

tags

include:

```
user:<user>
```
```
target:<target>
```
where target is
```
soul
```
,
```
recipe
```
, or
```
both
```
```
version:<version_tag>
```

Example SQL templates (copy/paste and substitute values):

sql

-- Rate limit check (max 1/day): any snapshot in last 24h?
SELECT id, created_at, title
FROM agent_memories
WHERE category = 'evolution-snapshot'
  AND 'user:<user>' = ANY(tags)
  AND created_at >= (NOW() - INTERVAL '24 hours')
ORDER BY created_at DESC
LIMIT 1;

-- Store an evolution snapshot
SELECT store_memory(
  'episodic',
  'evolution-snapshot',
  ARRAY['user:<user>', 'target:<target>', 'version:<version_tag>'],
  'Evolution Snapshot: <version_tag>',
  '<full evolution-snapshot YAML as text>',
  '{"version_tag": "<version_tag>", "target": "<target>", "timestamp": "<iso>"}',
  'evolution-agent',
  NULL,
  8.0
);

-- List recent snapshots for a user (most recent first)
SELECT id, created_at, title
FROM agent_memories
WHERE category = 'evolution-snapshot'
  AND 'user:<user>' = ANY(tags)
ORDER BY created_at DESC
LIMIT 50;

Operations

```
evolve-soul
```
- Check if matrix has enough data (buffer threshold) and/or synthesis is pending.
- Apply pending matrix updates.
- Synthesize new Layer 3 profile using evidence (last 50 facets), then version it.
```
evolve-recipes
```
- Analyze workflow facets to detect friction/outcomes.
- Propose conservative recipe modifications and version them.
```
list-versions
```
- List evolution history for a user, optionally filtered by target.
```
rollback
```
- Restore a previous version of soul or recipes.
- Records the rollback as a new snapshot.

skill

{
  "schema_version": "2.0",
  "id": "skill-system-evolution",
  "version": "1.0.0",
  "capabilities": ["evolution-soul", "evolution-recipes", "evolution-list", "evolution-rollback"],
  "effects": ["db.read", "db.write", "fs.read", "fs.write"],
  "operations": {
    "evolve-soul": {
      "description": "Evolve soul profile from accumulated insight data. Creates versioned snapshot.",
      "input": {
        "user": {"type": "string", "required": true, "description": "User handle"}
      },
      "output": {
        "description": "Evolution result with version tag",
        "fields": {"version_tag": "string", "changes": "array", "profile_path": "string"}
      },
      "entrypoints": {
        "agent": "Follow scripts/evolve-soul.md procedure"
      }
    },
    "evolve-recipes": {
      "description": "Evolve workflow recipes based on effectiveness data from insight facets.",
      "input": {
        "user": {"type": "string", "required": true, "description": "User handle"}
      },
      "output": {
        "description": "Recipe evolution result with version tag",
        "fields": {"version_tag": "string", "recipes_changed": "array"}
      },
      "entrypoints": {
        "agent": "Follow scripts/evolve-recipes.md procedure"
      }
    },
    "list-versions": {
      "description": "List all evolution snapshots for a user.",
      "input": {
        "user": {"type": "string", "required": true},
        "target": {"type": "string", "required": false, "description": "Filter: soul | recipe | all"}
      },
      "output": {
        "description": "Array of version snapshots",
        "fields": {"versions": "array of {tag, target, timestamp, summary}"}
      },
      "entrypoints": {
        "agent": "Follow scripts/list-versions.md procedure"
      }
    },
    "rollback": {
      "description": "Restore a previous evolution version.",
      "input": {
        "user": {"type": "string", "required": true},
        "version_tag": {"type": "string", "required": true, "description": "Version tag to restore"}
      },
      "output": {
        "description": "Rollback result",
        "fields": {"status": "ok | error", "restored_from": "string"}
      },
      "entrypoints": {
        "agent": "Follow scripts/rollback.md procedure"
      }
    }
  },
  "stdout_contract": {
    "last_line_json": false,
    "note": "Agent-executed procedures; versioned snapshots stored in agent_memories."
  }
}

skill-system-evolution

NPX Install

Tags

SKILL.md Content