Comparison
agentsys vs plandex
Verdict
Pick agentsys if agentsys is an AI-driven system that automates code writing and tasks through plugins and agents, supporting multiple AI tools like Claude Code, OpenCode, Codex, Cursor, and Kiro; pick plandex if designed for large-scale projects with features like REPL mode and CLI integration.
Markdown twin · agentsys alternatives · plandex alternatives
GraphCanon updated Sep 30, 2026
11views this month
Trust & integrity
| Signal | agentsys | plandex |
|---|---|---|
| Maintenance | Very active (6d since push) As of Sep 20, 2026 · github_public_v1 | Slowing (351d since push) As of Sep 20, 2026 · github_public_v1 |
| Provenance | Not a fork · Organization account As of Sep 20, 2026 · github_public_v1 | Not a fork · Organization account As of Sep 20, 2026 · github_public_v1 |
| OSV dependency advisories | No lockfile (source not queried) As of Jul 15, 2026 · osv@v1 | No lockfile (source not queried) As of Jul 11, 2026 · osv@v1 |
| deps.dev advisories | Not queried deps.dev@v1 | Not queried deps.dev@v1 |
| OpenSSF Scorecard | Not queried openssf-scorecard@v1 | Not queried openssf-scorecard@v1 |
Tagline
- agentsys
- AI writes code, automates tasks with plugins and agents
- plandex
- Open source AI coding agent
Stars
- agentsys
- 985
- plandex
- 16k
Forks
- agentsys
- 115
- plandex
- 1.2k
Open issues
- agentsys
- 0
- plandex
- 62
Language
- agentsys
- JavaScript
- plandex
- Go
Adopt for
- agentsys
- agentsys is an AI-driven system that automates code writing and tasks through plugins and agents, supporting multiple AI tools like Claude Code, OpenCode, Codex, Cursor, and Kiro.
- plandex
- Designed for large-scale projects with features like REPL mode and CLI integration.
Persona
- agentsys
- -
- plandex
- -
Runtime
- agentsys
- -
- plandex
- -
License
- agentsys
- MIT
- plandex
- MIT License: Permissive open-source license allowing for free use, modification, and distribution.
Last pushed
- agentsys
- Sep 13, 2026
- plandex
- Oct 3, 2025
Categories
- agentsys
- AI Agents, Developer Tools
- plandex
- AI Agents, Developer Tools
Trust and health
Maintenance
- agentsys
- Very active (96%)
- plandex
- Slowing (36%)
Days since push
- agentsys
- 6d
- plandex
- 351d
Open issues (now)
- agentsys
- 0
- plandex
- 62
Stars delta
- agentsys
- +23 (30d)
- plandex
- +57 (30d)
Open issues delta
- agentsys
- 0 (30d)
- plandex
- +2 (30d)
Full report
- agentsys
- Trust report
- plandex
- Trust report
Choose agentsys if…
- agentsys is primarily JavaScript; plandex is Go.
- Requirements: Requires Git and Node.js 18+.; For GitHub workflows, the GitHub CLI (`gh`) must be authenticated.; For GitLab workflows, the GitLab CLI (`glab`) must be authenticated.; For /repo-intel, agent-analyzer is installed automatically via npm..
- Tags unique to agentsys: agent, ai, automation, code-review.
- When you need to automate code writing and tasks with a wide range of AI tools, including Claude Code, OpenCode, Codex, Cursor, and Kiro.
When NOT to use agentsys
- If your project strictly requires a specific AI tool that is not supported by agentsys, such as a proprietary or niche AI tool.
- When you need a system that does not rely on JavaScript or Node.js 18+, as agentsys requires these technologies.
- If you are working in an environment where the installation of additional tools like the GitHub CLI, GitLab CLI, or agnix CLI is not feasible or allowed.
Choose plandex if…
- plandex is primarily Go; agentsys is JavaScript.
- Pricing: Primarily an open source tool that supports self-hosting. Requires your own OpenRouter.ai key or other model provider accounts/API keys for model access..
- Requirements: Requires Docker; Plandex requires Docker for local mode installation.; Installation supports only command-line methods including a one-liner and detailed steps using WSL on Windows machines..
- Tags unique to plandex: ai-agents, cli, developer-tools, golang.
- You are working on extensive software projects where an AI coding agent can assist in managing complexity.
When NOT to use plandex
- If you require cloud-hosting options for extra reliability and convenience since Plandex Cloud is winding down as of 10/3/2025 and no longer accepts new users.
- You are working in a Windows environment without WSL, as Plandex only functions correctly on Windows within the WSL shell.
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (agent-sh/agentsys) · observed Sep 20, 2026
- GitHub forks (agent-sh/agentsys) · observed Sep 20, 2026
- Last push (agent-sh/agentsys) · observed Sep 13, 2026
- License file (MIT) · observed Sep 20, 2026
- Decision facts (enrichment) · observed Sep 30, 2026
- Trust scan (lockfile / OSV) · observed Jul 15, 2026
- GitHub stars (plandex-ai/plandex) · observed Sep 20, 2026
- GitHub forks (plandex-ai/plandex) · observed Sep 20, 2026
- Last push (plandex-ai/plandex) · observed Oct 3, 2025
- License file (MIT) · observed Sep 20, 2026
- Decision facts (enrichment) · observed Jul 11, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
GitHub stars on cards: agentsys 985 · plandex 16k (synced Sep 20, 2026).
Common questions
- What is the difference between agentsys and plandex?
- agentsys: AI writes code, automates tasks with plugins and agents. plandex: Open source AI coding agent. See the comparison table for live GitHub stats and shared categories.
- When should I choose agentsys over plandex?
- Choose agentsys over plandex when agentsys is primarily JavaScript; plandex is Go; Requirements: Requires Git and Node.js 18+.; For GitHub workflows, the GitHub CLI (
gh) must be authenticated.; For GitLab workflows, the GitLab CLI (glab) must be authenticated.; For /repo-intel, agent-analyzer is installed automatically via npm.; Tags unique to agentsys: agent, ai, automation, code-review; When you need to automate code writing and tasks with a wide range of AI tools, including Claude Code, OpenCode, Codex, Cursor, and Kiro. - When should I choose plandex over agentsys?
- Choose plandex over agentsys when plandex is primarily Go; agentsys is JavaScript; Pricing: Primarily an open source tool that supports self-hosting. Requires your own OpenRouter.ai key or other model provider accounts/API keys for model access.; Requirements: Requires Docker; Plandex requires Docker for local mode installation.; Installation supports only command-line methods including a one-liner and detailed steps using WSL on Windows machines.; Tags unique to plandex: ai-agents, cli, developer-tools, golang; You are working on extensive software projects where an AI coding agent can assist in managing complexity.
- When should I avoid agentsys?
- If your project strictly requires a specific AI tool that is not supported by agentsys, such as a proprietary or niche AI tool. When you need a system that does not rely on JavaScript or Node.js 18+, as agentsys requires these technologies. If you are working in an environment where the installation of additional tools like the GitHub CLI, GitLab CLI, or agnix CLI is not feasible or allowed.
- When should I avoid plandex?
- If you require cloud-hosting options for extra reliability and convenience since Plandex Cloud is winding down as of 10/3/2025 and no longer accepts new users. You are working in a Windows environment without WSL, as Plandex only functions correctly on Windows within the WSL shell.
- Is agentsys or plandex more popular on GitHub?
- plandex has more GitHub stars (15,645 vs 985). Stars measure visibility, not whether either tool fits your constraints.
- Are agentsys and plandex open source?
- Yes - both are open-source projects on GitHub (agentsys: MIT, plandex: MIT).
- Where can I find alternatives to agentsys or plandex?
- GraphCanon lists graph-backed alternatives at agentsys alternatives and plandex alternatives (agentsys markdown twin, plandex markdown twin), ranked by typed relationship edges rather than popularity votes.
- Is there a machine-readable version of this comparison?
- Yes. The markdown twin at this comparison mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers.
- Which is better maintained, agentsys or plandex?
- agentsys: Very active. plandex: Slowing. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance.
- Where are the full trust reports for agentsys and plandex?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: agentsys trust report; plandex trust report.