Comparison
agentsys vs plandex
Verdict
Pick agentsys if agentsys supports automation through AI agents that handle various coding environments with plugins and skills; pick plandex if designed for large-scale projects with features like REPL mode and CLI integration.
Markdown twin · agentsys alternatives · plandex alternatives
GraphCanon updated today
Trust & integrity
| Signal | agentsys | plandex |
|---|---|---|
| Maintenance | Active (16d since push) As of 1w · github_public_v1 | Slowing (320d since push) As of today · github_public_v1 |
| Provenance | Not a fork · Organization account As of 1w · github_public_v1 | Not a fork · Organization account As of today · github_public_v1 |
| OSV dependency advisories | No lockfile (source not queried) As of 1mo · osv@v1 | No lockfile (source not queried) As of 1mo · 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 to automate workflows and tasks
- plandex
- Open source AI coding agent
Stars
- agentsys
- 962
- plandex
- 16k
Forks
- agentsys
- 111
- plandex
- 1.2k
Open issues
- agentsys
- 0
- plandex
- 60
Language
- agentsys
- JavaScript
- plandex
- Go
Adopt for
- agentsys
- agentsys supports automation through AI agents that handle various coding environments with plugins and skills.
- 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
- Jul 26, 2026
- plandex
- Oct 3, 2025
Categories
- agentsys
- AI Agents, Developer Tools
- plandex
- AI Agents, Developer Tools
Trust and health
Maintenance
- agentsys
- Active (82%)
- plandex
- Slowing (36%)
Days since push
- agentsys
- 16d
- plandex
- 320d
Open issues (now)
- agentsys
- 0
- plandex
- 60
Stars delta
- agentsys
- Unknown
- plandex
- +52 (30d)
Open issues delta
- agentsys
- Unknown
- plandex
- +1 (30d)
Full report
- agentsys
- Trust report
- plandex
- Trust report
Choose agentsys if…
- agentsys is primarily JavaScript; plandex is Go.
- Pricing: MIT licensed tool offers open access for free but may include premium plugins or skills..
- Requirements: Min 2 GB RAM; Requires modern JavaScript environment to run effectively.; Ensure internet connectivity due to reliance on plugins and skills that may require update downloads or external API access for certain functionalities..
- Tags unique to agentsys: agent, ai, automation, autonomous-agents.
- Use when you need to automate complex workflows in JavaScript-heavy projects, as it integrates well with JavaScript environments like Claude Code.
When NOT to use agentsys
- Avoid for teams not proficient in JavaScript or those preferring languages where agentsys does not provide comparable support.
- Do not use if your project scope is better served by competitors with more specialized skill sets that align closely with niche requirements, as opposed to the general utility approach of agentsys.
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 Aug 12, 2026
- GitHub forks (agent-sh/agentsys) · observed Aug 12, 2026
- Last push (agent-sh/agentsys) · observed Jul 26, 2026
- License file (MIT) · observed Aug 12, 2026
- Decision facts (enrichment) · observed Jul 17, 2026
- Trust scan (lockfile / OSV) · observed Jul 15, 2026
- GitHub stars (plandex-ai/plandex) · observed Aug 20, 2026
- GitHub forks (plandex-ai/plandex) · observed Aug 20, 2026
- Last push (plandex-ai/plandex) · observed Oct 3, 2025
- License file (MIT) · observed Aug 20, 2026
- Decision facts (enrichment) · observed Jul 11, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
GitHub stars on cards: agentsys 962 · plandex 16k (synced Aug 12, 2026).
Common questions
- What is the difference between agentsys and plandex?
- agentsys: AI writes code to automate workflows and tasks. 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; Pricing: MIT licensed tool offers open access for free but may include premium plugins or skills.; Requirements: Min 2 GB RAM; Requires modern JavaScript environment to run effectively.; Ensure internet connectivity due to reliance on plugins and skills that may require update downloads or external API access for certain functionalities.; Tags unique to agentsys: agent, ai, automation, autonomous-agents; Use when you need to automate complex workflows in JavaScript-heavy projects, as it integrates well with JavaScript environments like Claude Code.
- 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?
- Avoid for teams not proficient in JavaScript or those preferring languages where agentsys does not provide comparable support. Do not use if your project scope is better served by competitors with more specialized skill sets that align closely with niche requirements, as opposed to the general utility approach of agentsys.
- 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 (15,588 vs 962). 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: 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.