NaCl (reading as Natrium Chloride) is an open-source full-SDLC framework, and its core innovation is how it solves the hardest problem in agentic development: storing and retrieving project knowledge. Instead of markdown specs that agents must re-read every session, all project knowledge — requirements, architecture decisions, entities, rules, and their relationships — lives in a Neo4j knowledge graph as first-class queryable objects. The measured effect: planning a single use case takes ~550 tokens (one targeted Cypher query) instead of ~150,000 tokens (reading a ~70-file markdown spec, because the agent doesn't know in advance where the relevant facts live) — a 99.6% reduction in context per use case, repeated in every planning session.
Around the graph we've built the full tooling for agentic development and testing: 57 skills covering BA → SA → TDD development → review → QA → release, quality gates before production, and an autonomous goal orchestrator (/nacl-goal). The framework answers "how is this built and why" for any part of the system, regardless of project scale or iteration count. Benchmarked on a real production project (EV charging station management): a classical team was estimated at 5,831 person-hours; running fully on NaCl the same scope takes 1,480 person-hours — 4x fewer person-hours and 60% lower cost.
Install
- 1Add it in ChatGPT
Open Plugins in the ChatGPT sidebar (web or desktop), search for “NaCl” and select +. You'll be asked to sign in to any connected service on first use. Then type @ in a chat to call it.
Skills 10
- nacl-ba
Route NaCl business analysis across context, processes, entities, roles, rules, workflows, validation, sync, and handoff. Use for graph-first BA work.
- nacl-diagnose
Diagnose NaCl project health, drift, status, reconciliation, or next work using read-only evidence and actionable closed outcomes.
- nacl-fix
Diagnose and repair a bounded NaCl defect with spec-first classification, a regression test, verification, and honest status propagation.
- nacl-goal
Plan or conduct a bounded NaCl objective with explicit checks and closed statuses. Use for multi-step goals and resumable orchestration.
- nacl-init
Inspect or initialize a NaCl project with a per-project Neo4j Community graph and project-local MCP. Use for first setup, bootstrap, and repair planning.
- nacl-migrate
Plan or execute confirmed NaCl methodology migrations for legacy, BA, or SA artifacts with backups, validation, and read-back.
- nacl-publish
Render, package, ship, release, deploy, or publish NaCl outputs with explicit external-write authorization and verified evidence.
- nacl-sa
Route NaCl system analysis across architecture, domains, roles, use cases, UI, features, validation, and finalization. Use for graph-first SA work.
- nacl-tl
Route NaCl team-lead work across intake, planning, development, review, QA, status, release, and deployment. Use for graph-aware delivery work.
- nacl-verify
Verify NaCl code, tests, QA, synchronization, review evidence, or stubs without converting missing runtime proof into success.
Things to ask
- “Check my NaCl project and summarize its delivery status.”
- “Analyze this feature request and route it through the right NaCl workflow.”
- “Verify this NaCl change and report specification or test gaps.”
Disconnect or uninstall
- 1In ChatGPT
Disconnect an account in Settings → Apps or Plugins. To remove the plugin itself, open NaCl in the Plugin Directory and select Uninstall plugin. Uninstalling can disconnect every account connected through it, and plugins your workspace installs may not offer the option.
- 2In Codex
Run /plugins in the Codex CLI, select the plugin and uninstall it, or press Space to turn it off.
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