Comparison
ECC vs koog
Verdict
Pick ECC if eCC is an agent harness performance optimization system for AI agents and large language models, emphasizing skills, instincts, memory, security, and research-first development; pick koog if koog offers JVM-centric AI agent development with support for wide-ranging deployment environments from Kotlin.
Markdown twin · ECC alternatives · koog alternatives
GraphCanon updated Sep 18, 2026
14views this month
Trust & integrity
| Signal | ECC | koog |
|---|---|---|
| Maintenance | Very active (0d since push) As of Sep 18, 2026 · github_public_v1 | Very active (3d since push) As of Aug 14, 2026 · github_public_v1 |
| Provenance | Not a fork · Personal account As of Sep 18, 2026 · github_public_v1 | Not a fork · Organization account As of Aug 14, 2026 · github_public_v1 |
| OSV dependency advisories | No published findings from this source as of 2026-09-18 As of Sep 18, 2026 · osv@v1 | No lockfile (source not queried) As of Jul 15, 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
- ECC
- Agent harness performance optimization system for AI agents and LLMs
- koog
- A JVM-based framework for building enterprise-ready AI agents
Stars
- ECC
- 261k
- koog
- 4.5k
Forks
- ECC
- 39k
- koog
- 457
Open issues
- ECC
- 227
- koog
- 175
Language
- ECC
- JavaScript
- koog
- Kotlin
Adopt for
- ECC
- ECC is an agent harness performance optimization system for AI agents and large language models, emphasizing skills, instincts, memory, security, and research-first development.
- koog
- Koog offers JVM-centric AI agent development with support for wide-ranging deployment environments from Kotlin.
Persona
- ECC
- -
- koog
- -
Runtime
- ECC
- -
- koog
- -
License
- ECC
- ECC is available under the MIT license, ensuring it remains free for open-source projects. However, for private repositories, ECC Pro offers a paid GitHub App service.
- koog
- Apache-2.0 License grants permissive use with attribution requirement.
Last pushed
- ECC
- Sep 17, 2026
- koog
- Aug 10, 2026
Categories
- ECC
- AI Agents, Developer Tools, LLM Frameworks
- koog
- AI Agents, Developer Tools
Trust and health
Days since push
- ECC
- 0d
- koog
- 3d
Open issues (now)
- ECC
- 227
- koog
- 175
Stars delta
- ECC
- +21k (30d)
- koog
- Unknown
Open issues delta
- ECC
- +105 (30d)
- koog
- Unknown
Owner type
- ECC
- User
- koog
- Organization
OSV dependency advisories
- ECC
- No published findings from this source as of 2026-09-18
- koog
- No lockfile (source not queried)
Full report
- ECC
- Trust report
- koog
- Trust report
Choose ECC if…
- ECC is primarily JavaScript; koog is Kotlin.
- License: ECC is MIT, koog is Apache-2.0.
- Pricing: ECC is free for open-source projects, but private repositories require a paid subscription starting at $19 per seat per month..
- Requirements: ECC requires a JavaScript environment and can be installed via guided setup or native plugin commands..
- Tags unique to ECC: ai-agents, claude, claude-code, developer-tools.
- Also covers LLM Frameworks.
- Use ECC when you need to optimize the performance of AI agents and large language models, particularly if you are working with platforms like Claude Code, Codex, Opencode, or Cursor.
When NOT to use ECC
- Avoid ECC if your project does not require the specific features it offers, such as skills, instincts, memory, security, and research-first development, and if you are looking for a more generalized L
Choose koog if…
- koog is primarily Kotlin; ECC is JavaScript.
- License: koog is Apache-2.0, ECC is MIT.
- Tags unique to koog: agentframework, agentic-ai, agents, ai-agents-framework.
- Need JVM-based fault-tolerant AI agents across multiple platforms including Android, iOS, and web browsers
When NOT to use koog
- Primarily working outside of JVM environments, such as pure Python or JavaScript projects without JVM support
- Looking for an AI agent framework that does not require JDK 17 or Kotlin 2.3.10 or higher
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (affaan-m/ECC) · observed Sep 18, 2026
- GitHub forks (affaan-m/ECC) · observed Sep 18, 2026
- Last push (affaan-m/ECC) · observed Sep 17, 2026
- License file (MIT) · observed Sep 18, 2026
- Decision facts (enrichment) · observed Sep 18, 2026
- Trust scan (lockfile / OSV) · observed Sep 18, 2026
- GitHub stars (JetBrains/koog) · observed Aug 14, 2026
- GitHub forks (JetBrains/koog) · observed Aug 14, 2026
- Last push (JetBrains/koog) · observed Aug 10, 2026
- License file (Apache-2.0) · observed Aug 14, 2026
- Decision facts (enrichment) · observed Jul 17, 2026
- Trust scan (lockfile / OSV) · observed Jul 15, 2026
GitHub stars on cards: ECC 261k · koog 4.5k (synced Sep 18, 2026).
Common questions
- What is the difference between ECC and koog?
- ECC: Agent harness performance optimization system for AI agents and LLMs. koog: A JVM-based framework for building enterprise-ready AI agents. See the comparison table for live GitHub stats and shared categories.
- When should I choose ECC over koog?
- Choose ECC over koog when ECC is primarily JavaScript; koog is Kotlin; License: ECC is MIT, koog is Apache-2.0; Pricing: ECC is free for open-source projects, but private repositories require a paid subscription starting at $19 per seat per month.; Requirements: ECC requires a JavaScript environment and can be installed via guided setup or native plugin commands.; Tags unique to ECC: ai-agents, claude, claude-code, developer-tools; Also covers LLM Frameworks; Use ECC when you need to optimize the performance of AI agents and large language models, particularly if you are working with platforms like Claude Code, Codex, Opencode, or Cursor.
- When should I choose koog over ECC?
- Choose koog over ECC when koog is primarily Kotlin; ECC is JavaScript; License: koog is Apache-2.0, ECC is MIT; Tags unique to koog: agentframework, agentic-ai, agents, ai-agents-framework; Need JVM-based fault-tolerant AI agents across multiple platforms including Android, iOS, and web browsers.
- When should I avoid ECC?
- Avoid ECC if your project does not require the specific features it offers, such as skills, instincts, memory, security, and research-first development, and if you are looking for a more generalized L
- When should I avoid koog?
- Primarily working outside of JVM environments, such as pure Python or JavaScript projects without JVM support Looking for an AI agent framework that does not require JDK 17 or Kotlin 2.3.10 or higher
- Is ECC or koog more popular on GitHub?
- ECC has more GitHub stars (261,432 vs 4,515). Stars measure visibility, not whether either tool fits your constraints.
- Are ECC and koog open source?
- Yes - both are open-source projects on GitHub (ECC: MIT, koog: Apache-2.0).
- Where can I find alternatives to ECC or koog?
- GraphCanon lists graph-backed alternatives at ECC alternatives and koog alternatives (ECC markdown twin, koog 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, ECC or koog?
- ECC: Very active. koog: Very active. 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 ECC and koog?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: ECC trust report; koog trust report.