docs(website): add Manus alternatives comparison

[mmabrouk]

This adds the reviewed Manus alternatives article to the marketing website.

What changed

• Adds the 2026 comparison of seven Manus alternatives.
• Frames the products by work shape: one-off task agents, AI workspaces, persistent coworkers, deterministic workflows, and developer frameworks.
• Compares the access points through which people use each product, separate from product capabilities.
• Defines Agenta as an open-source workspace for powerful, persistent AI coworkers that teams can customize, share, run, inspect, and improve.
• Adds refreshed local product visuals and a new original cover image.
• Removes the unverified OpenManus screenshot rather than publishing a questionable third-party asset.

Verification

• pnpm build
• git diff --check

The build passed. It emitted only the expected licensed-font fallback warnings for an environment without the R2 font credentials.

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Project	Deployment	Actions	Updated
agenta-documentation	Ready	Preview	Sep 4, 2026 1:24pm UTC

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Important

Review skipped

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⛔ Files ignored due to path filters (1)

• website/public/blog/best-manus-alternatives/hero.png is excluded by !**/*.png

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⚙️ Run configuration

Configuration used: Repository YAML (base), Organization UI (inherited)

Review profile: CHILL

Plan: Team

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ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Repository YAML (base), Organization UI (inherited)

Review profile: CHILL

Plan: Team

Run ID: 132ba252-3389-4570-929b-7de1b65b7594

📥 Commits

Reviewing files that changed from the base of the PR and between c9a8c52 and 12f0961.

⛔ Files ignored due to path filters (1)

• website/public/blog/best-manus-alternatives/openmanus.png is excluded by !**/*.png

📒 Files selected for processing (1)

• website/src/content/posts/best-manus-alternatives.mdx

🚧 Files skipped from review as they are similar to previous changes (1)

• website/src/content/posts/best-manus-alternatives.mdx

Included review availability: Your plan provides up to 8 included reviews per hour; 6 remain after this review.

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📝 Summary

Summary by CodeRabbit

• Documentation
  • Added a new blog post comparing seven alternatives to Manus, including ChatGPT Work, Genspark, Claude Cowork, Agenta, Lindy, OpenManus, and n8n.
  • Includes pricing details, pros and cons, comparison guidance, migration steps, frequently asked questions, and a structured comparison table.
  • Added product profiles and practical recommendations to help readers choose an alternative.

Walkthrough

Changes

Manus alternatives guide

Layer / File(s)	Summary
Article foundation and comparison website/src/content/posts/best-manus-alternatives.mdx	Adds post metadata, an introduction, a semantic comparison table, and criteria for selecting an alternative.
Alternative profiles website/src/content/posts/best-manus-alternatives.mdx	Profiles ChatGPT Work, Genspark, Claude Cowork, Agenta, Lindy, OpenManus, and n8n with capabilities, pricing, trade-offs, and recommendations.
Selection, migration, and closing guidance website/src/content/posts/best-manus-alternatives.mdx	Adds use-case recommendations, a six-step migration guide, FAQs, and an Agenta call to action.

Estimated code review effort: 2 (Simple) | ~10 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly identifies a documentation change that adds a Manus alternatives comparison. It is concise and matches the main change.
Description check	✅ Passed	The description accurately summarizes the new comparison article, its product categorization, visual updates, removed asset, and verification results.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

Full details: Docstring Coverage

Explanation

No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0 files. (1 skipped: 1 unsupported.)

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch agent/best-manus-alternatives

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Website preview

Preview URL: https://pr-6474-agenta-website-preview.mahmoud-637.workers.dev

Built from 4f09a06c626ee2e37acd257d05e9418cfa2f47ce. This comment updates in place on every push.

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Actionable comments posted: 1

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Repository YAML (base), Organization UI (inherited)

Review profile: CHILL

Plan: Team

Run ID: 30b0f0d6-5f61-4775-ad74-9836914893a3

📥 Commits

Reviewing files that changed from the base of the PR and between 0e074db and c9a8c52.

⛔ Files ignored due to path filters (7)

• website/public/blog/best-manus-alternatives/agenta.png is excluded by !**/*.png
• website/public/blog/best-manus-alternatives/chatgpt-work.png is excluded by !**/*.png
• website/public/blog/best-manus-alternatives/claude-cowork.png is excluded by !**/*.png
• website/public/blog/best-manus-alternatives/genspark.png is excluded by !**/*.png
• website/public/blog/best-manus-alternatives/hero.png is excluded by !**/*.png
• website/public/blog/best-manus-alternatives/lindy.png is excluded by !**/*.png
• website/public/blog/best-manus-alternatives/n8n.png is excluded by !**/*.png

📒 Files selected for processing (1)

• website/src/content/posts/best-manus-alternatives.mdx

Included review availability: Your plan provides up to 8 included reviews per hour; 7 remain after this review.