Class: Llmemory::LongTerm::Procedural::Memory

Inherits:
Object
  • Object
show all
Includes:
MemoryModule
Defined in:
lib/llmemory/long_term/procedural/memory.rb

Overview

Procedural long-term memory: a Voyager-style skill library. Agents register reusable skills (prompts, templates, code), retrieve them by relevance to the current task, and report outcomes so proven skills are preferred over unproven ones.

The success rate of each skill is surfaced as ‘importance`, so the retrieval Engine ranks battle-tested skills higher (P3). Semantic (embedding) retrieval is opt-in via `config.procedural_vector_enabled` or by injecting a `vector_store:`; when off, search is keyword-only.

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from MemoryModule

#forget_log, #read

Constructor Details

#initialize(user_id:, storage: nil, vector_store: nil) ⇒ Memory

Returns a new instance of Memory.



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# File 'lib/llmemory/long_term/procedural/memory.rb', line 25

def initialize(user_id:, storage: nil, vector_store: nil)
  @user_id = user_id
  @storage = storage || Storages.build
  @vector_store = vector_store
  @vector_explicit = !vector_store.nil?
end

Instance Attribute Details

#storage ⇒ Object (readonly)

Returns the value of attribute storage.



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# File 'lib/llmemory/long_term/procedural/memory.rb', line 23

def storage
  @storage
end

#user_id ⇒ Object (readonly)

Returns the value of attribute user_id.



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# File 'lib/llmemory/long_term/procedural/memory.rb', line 23

def user_id
  @user_id
end

Instance Method Details

#count ⇒ Object 



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# File 'lib/llmemory/long_term/procedural/memory.rb', line 59

def count
  @storage.count_skills(@user_id)
end

#expired_ids(cutoff:) ⇒ Object

Storage accessor for the TTL maintenance job.



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# File 'lib/llmemory/long_term/procedural/memory.rb', line 116

def expired_ids(cutoff:)
  @storage.expired_skill_ids(@user_id, cutoff: cutoff)
end

#find_skill(query) ⇒ Object 



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# File 'lib/llmemory/long_term/procedural/memory.rb', line 45

def find_skill(query)
  raw = @storage.search_skills(@user_id, query).first
  raw && Skill.from_h(raw)
end

#forget(ids:, reason: nil, mode: :soft) ⇒ Object 



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# File 'lib/llmemory/long_term/procedural/memory.rb', line 102

def forget(ids:, reason: nil, mode: :soft)
  requested = Array(ids).map(&:to_s)
  existing = @storage.list_skills(@user_id).map { |s| (s[:id] || s["id"]).to_s }
  targeted = requested & existing
  count = case mode
  when :hard then @storage.delete_skills(@user_id, targeted).to_i
  else @storage.archive_skills(@user_id, targeted).to_i
  end
  forget_log.record(@user_id, memory_type: "procedural", ids: targeted, reason: reason)
  Llmemory::Instrumentation.instrument(:memory_forget, memory_type: "procedural", user_id: @user_id, count: count, mode: mode)
  count
end

#get_skill(id) ⇒ Object 



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# File 'lib/llmemory/long_term/procedural/memory.rb', line 50

def get_skill(id)
  raw = @storage.get_skill(@user_id, id)
  raw && Skill.from_h(raw)
end

#list(user_id: nil, limit: nil, offset: nil) ⇒ Object 



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# File 'lib/llmemory/long_term/procedural/memory.rb', line 94

def list(user_id: nil, limit: nil, offset: nil)
  skills(limit: limit, offset: offset)
end

#register_skill(name:, body:, description: nil, kind: Skill::DEFAULT_KIND, version: nil, provenance: nil) ⇒ Object

Registers a skill. If ‘version` is omitted and a skill with the same name exists, the version auto-increments (skill evolution).



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# File 'lib/llmemory/long_term/procedural/memory.rb', line 34

def register_skill(name:, body:, description: nil, kind: Skill::DEFAULT_KIND, version: nil, provenance: nil)
  version ||= next_version_for(name)
  skill = Skill.new(
    id: nil, user_id: @user_id, name: name, body: body,
    description: description, kind: kind, version: version, provenance: provenance
  )
  id = @storage.save_skill(@user_id, skill.to_h)
  index_vector(id, skill.searchable_text)
  id
end

#report_outcome(skill_id, success:) ⇒ Object

Records that applying a skill succeeded or failed. Feeds retrieval ranking and adaptive retrieval (P8). Returns the updated Skill.



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# File 'lib/llmemory/long_term/procedural/memory.rb', line 65

def report_outcome(skill_id, success:)
  raw = @storage.record_outcome(@user_id, skill_id, success: success)
  raw && Skill.from_h(raw)
end

#search_candidates(query, user_id: nil, top_k: 20) ⇒ Object

Retrieval Engine integration: skills ranked by relevance, recency and proven utility (success rate exposed as importance). Hybrid (vector + keyword) when a vector store is active; otherwise keyword-only.



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# File 'lib/llmemory/long_term/procedural/memory.rb', line 73

def search_candidates(query, user_id: nil, top_k: 20)
  uid = user_id || @user_id
  return [] unless uid == @user_id

  keyword = @storage.search_skills(uid, query).first(top_k).map { |raw| candidate_for(raw, 1.0) }
  vs = vector_store
  return keyword unless vs

  merge_candidates(vector_candidates(query, top_k, vs), keyword, top_k)
end

#skills(limit: nil, offset: nil) ⇒ Object 



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# File 'lib/llmemory/long_term/procedural/memory.rb', line 55

def skills(limit: nil, offset: nil)
  @storage.list_skills(@user_id, limit: limit, offset: offset).map { |s| Skill.from_h(s) }
end

#stats(user_id: nil) ⇒ Object 



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# File 'lib/llmemory/long_term/procedural/memory.rb', line 98

def stats(user_id: nil)
  { skills: count }
end

#write(name:, body:, description: nil, kind: Skill::DEFAULT_KIND, version: nil, provenance: nil, **_meta) ⇒ Object

— MemoryModule uniform interface —



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# File 'lib/llmemory/long_term/procedural/memory.rb', line 86

def write(name:, body:, description: nil, kind: Skill::DEFAULT_KIND, version: nil, provenance: nil, **_meta)
  result = nil
  Llmemory::Instrumentation.instrument(:memory_write, memory_type: "procedural", user_id: @user_id) do
    result = register_skill(name: name, body: body, description: description, kind: kind, version: version, provenance: provenance)
  end
  result
end