A skill that gives AI agents persistent, structured memory across sessions using Maximem Synap, a managed service for storing and retrieving facts, preferences, past events, and entities.

Use it when building, debugging, or evaluating an AI agent that needs long-term memory or must remember users and past conversations.

It helps agents retain relevant information instead of losing it when a conversation or session ends.

synap-codex — Skill for Claude Code and Codex by vaibhav0806

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.

Any agent

npx skills add vaibhav0806/maximem_synap_sdk --skill synap-codex

Clone the repo

git clone --depth 1 https://github.com/vaibhav0806/maximem_synap_sdk

Made for: Claude Code, Codex.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/vaibhav0806/maximem_synap_sdk/synap-codex/github.svg)](https://agentmods.dev/skills/vaibhav0806/maximem_synap_sdk/synap-codex)

Your own site

<a href="https://agentmods.dev/skills/vaibhav0806/maximem_synap_sdk/synap-codex"><img src="https://agentmods.dev/badge/skills/vaibhav0806/maximem_synap_sdk/synap-codex/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/vaibhav0806/maximem_synap_sdk/synap-codex"><img src="https://agentmods.dev/badge/skills/vaibhav0806/maximem_synap_sdk/synap-codex.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 254 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,573 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.

Origin 91% copy Near-identical to another mod 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.

Model	Per session	Once invoked
Fable 5.1	$0.00254	$0.01573
Opus 5.5	$0.00102	$0.00629
Sonnet 5.5	$0.00051	$0.00315
Haiku 4.5	$0.00025	$0.00157

Measured 1mo ago against content hash 6af1b47c8664, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

synap-codex scanned grade A with 1 finding 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 1mo ago.

The scan reads SKILL.md. This mod also ships 3 executable files (examples/python-minimal.py, examples/typescript-minimal.ts, scripts/verify_synap.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

- **Four fetch interfaces — match retrieval to the scope you ingested at:** `sdk.user.context.fetch(user_id=...)`, `sdk.customer.context.fetch(customer_id=...)`, `sdk.client.context.fetch()`, `sdk.conversation.context.fe

Origin

This is a copy

91% identical to synap — 78 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/synap-codex/SKILL.md · 64 lines

How it starts

The opening of the file, as written. The whole thing — 64 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Maximem Synap — Agent Memory Skill (Codex)

Synap is a managed memory layer for AI agents: it ingests conversations/documents, extracts structured knowledge (facts, preferences, episodes, entities), and serves ranked, scope-aware context back at retrieval time. No vector DB to run, no retrieval pipeline to build.

This is the Codex edition. The integration knowledge — reference/, scripts/, examples/ — is byte-for-byte identical to the Claude Code skill; only this manifest and AGENTS.md differ. Read only the reference files you actually need.

Sandbox & approvals (read first)

This skill does real work in the user's repo, so the procedure needs capabilities Codex gates behind approval. State what you need before you start; don't assume silent execution:

Network access — to pip install maximem-synap / npm install @maximem/synap-js-sdk and the framework package, and for the SDK to reach Synap Cloud at runtime.
File writes — to add integration code and (if missing) a git-ignored .env.
A secret — the synap_... API key. Ask the user to provide it; never print it back or commit it.

If running with restricted network/filesystem, tell the user which commands to run themselves.

Procedure — the order to do this in

There is no CLI. Provisioning happens by hand in the dashboard; the SDK only uses a key that already exists. Do not skip the PAUSE.

Detect the stack. Identify the user's framework (or "custom"). This selects which reference/frameworks/<name>.md to follow — see reference/frameworks/_index.md.
Provision in the dashboard (manual). Walk the user through reference/dashboard-setup.md: sign up → create Client → create Instance (+ upload a use-case .md, see reference/use-case-markdown.md) → set B2C/B2B → generate an API key.
⏸ PAUSE. Ask the user to paste their synap_... key (or set it themselves), then export SYNAP_API_KEY=synap_.... Do not write integration code before the key is set.
Install. The SDK + the framework package (needs network + approval — see "Sandbox & approvals"). Details in reference/sdk-setup.md.
Integrate. Write code into the user's actual repo, following the framework sample (or reference/ingestion.md + reference/context-fetch.md for a custom stack).
Verify. Run python scripts/verify_synap.py. Never report done without a green run.

Read the full file on GitHub · 64 lines

Files

What ships with it

34 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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.

1mo ago First seen · 64 lines · 254 tokens per session scan A 6af1b47c8664

Subscribe to this mod's changes

synap-codex is a skill published in the GitHub repository vaibhav0806/maximem_synap_sdk (0 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 254 tokens to every session and 1,573 once invoked, about $0.0010 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). It is 91% identical to synap, differing in 78 lines, and is treated as a copy.

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synap-codex