serena-memory

serena-memory is a skill for Claude Code, Codex from anilcancakir/claude-code-plugins. It costs 57 tokens per session (463 once invoked), scanned A, original, MIT.

A set of instructions for saving and retrieving project knowledge with Serena’s memory tools. Serena is a coding-agent integration that can store named notes such as architecture, conventions, recent changes, bugs, and session context.

In plain words
What is it for?
Use it to save project context, load or edit architecture notes, record debugging findings and test patterns, list stored memories, or preserve work before context is shortened.
Why use it?
Important project details can be lost between sessions or after a long conversation. Persistent notes let the agent reload that information when it is needed.

Skill for Claude CodeCodex

Part of the serena-integration plugin — 3 skills shipped together

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/anilcancakir/claude-code-plugins/serena-memory
Any agent
npx skills add anilcancakir/claude-code-plugins --skill serena-memory
Clone the repo
git clone --depth 1 https://github.com/anilcancakir/claude-code-plugins

Made for: Claude Code, Codex.

Or install serena-integration, the plugin that ships this one along with the rest of its 3 skills.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for serena-memory

README.md
[![agentmods](https://agentmods.dev/badge/skills/anilcancakir/claude-code-plugins/serena-memory.svg)](https://agentmods.dev/skills/anilcancakir/claude-code-plugins/serena-memory)
Your own site
<a href="https://agentmods.dev/skills/anilcancakir/claude-code-plugins/serena-memory"><img src="https://agentmods.dev/badge/skills/anilcancakir/claude-code-plugins/serena-memory.svg" alt="Measured on agentmods" height="20"></a>
Per session 57 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 463 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00057 $0.00463
Opus 5 $0.00028 $0.00231
Sonnet 5 $0.00011 $0.00093
Haiku 4.5 $0.00006 $0.00046

Measured 4d ago against content hash d5faea61f37d, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

serena-memory scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

serena-integration/skills/serena-memory/SKILL.md · 81 lines

What it actually says

Serena Memory Management

Memory Operations

Operation Tool
Save knowledge write_memory(key, content)
Update existing edit_memory(key, content)
Load knowledge read_memory(key)
List all list_memories()
Remove delete_memory(key)
Key Purpose
architecture_overview System architecture
code_conventions Coding standards
recent_changes Latest commits
known_issues Bugs and workarounds
test_patterns Testing conventions
session_context Current task (preserved during compaction)

When to Update Memories

  1. After exploration: Save architectural insights
  2. After debugging: Document root causes and fixes
  3. After refactoring: Record successful patterns
  4. Before compaction: Preserve current task context
  5. After commits: Summarize significant changes

Example: Architecture Memory

write_memory(
  key="architecture_overview",
  content="""
# Project Architecture

## Layers
- API: FastAPI routes in src/api/
- Services: Business logic in src/services/
- Models: SQLAlchemy models in src/models/

## Key Patterns
- Dependency injection via FastAPI Depends
- Repository pattern for data access

## Entry Points
- Main app: src/main.py
- CLI: src/cli.py
"""
)

Example: Code Conventions Memory

write_memory(
  key="code_conventions",
  content="""
# Code Conventions

- snake_case for functions/variables
- PascalCase for classes
- Type hints required for public functions
- Docstrings in Google style
- Tests in tests/ mirror src/ structure
"""
)
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 4d ago First seen · 81 lines · 57 tokens per session scan A d5faea61f37d

Subscribe to this mod's changes

serena-memory is a skill published in the GitHub repository anilcancakir/claude-code-plugins (6 stars, last pushed 7mo ago), licensed MIT. It adds 57 tokens to every session and 463 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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