LCORE-2933: Overview page

[tisnik]

Description

LCORE-2933: Overview page

Type of change

• Refactor
• New feature
• Bug fix
• CVE fix
• Optimization
• Documentation Update
• Configuration Update
• Bump-up service version
• Bump-up dependent library
• Bump-up library or tool used for development (does not change the final image)
• CI configuration change
• Konflux configuration change
• Unit tests improvement
• Integration tests improvement
• End to end tests improvement
• Benchmarks improvement

Tools used to create PR

• Assisted-by: N/A
• Generated by: N/A

Related Tickets & Documents

• Related Issue #LCORE-2933

Summary by CodeRabbit

• Documentation
  • Added an overview of the Lightspeed Core Stack (LCore) and its role as middleware for LLM backends.
  • Documented authentication, quotas, caching, conversation history, retrieval-augmented generation, tool orchestration, observability, and agent-to-agent support.
  • Included a reference to an architecture diagram.

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Review details

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: ASSERTIVE

Plan: Pro

Run ID: ed3e5f27-d908-4087-a8b2-9b41d713397d

📥 Commits

Reviewing files that changed from the base of the PR and between b547989 and bda8207.

⛔ Files ignored due to path filters (1)

• docs/overview.svg is excluded by !**/*.svg

📒 Files selected for processing (3)

• docs/README.md
• docs/index.md
• docs/overview.md

Walkthrough

Adds an overview document describing Lightspeed Core Stack as middleware for LLM backends, including authentication, quotas, caching, RAG, MCP tools, observability, conversation history, and A2A support.

Changes

LCore overview documentation

Layer / File(s)	Summary
Overview architecture and capabilities docs/overview.md	Documents LCore’s middleware role, integrations, key features, and component diagram reference.

Estimated code review effort: 1 (Trivial) | ~2 minutes

Possibly related PRs

• lightspeed-core/lightspeed-stack#390: Adds MCP server registration and configuration documentation related to LCore tool orchestration.

🚥 Pre-merge checks | ✅ 7

✅ Passed checks (7 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title matches the change set: it adds the LCORE-2933 overview documentation page.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
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.
Performance And Algorithmic Complexity	✅ Passed	No performance/complexity regressions found: the PR only adds documentation/assets, with no executable handlers, loops, list ops, caches, or pagination logic.
Security And Secret Handling	✅ Passed	Docs-only PR; touched markdown/SVG files contain no secrets, auth gaps, injection sinks, leaked sensitive data, or K8s secret issues.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

✨ Simplify code

• Create PR with simplified code

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Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@docs/overview.md`:
- Line 9: Update the introductory statement in the overview documentation to
remove the time-sensitive “Current version of” wording, so it begins with “LCore
is built on Llama Stack” while preserving the remaining explanation.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: ASSERTIVE

Plan: Pro

Run ID: 9df1fe91-ffd2-4494-83d9-82a87c83a189

📥 Commits

Reviewing files that changed from the base of the PR and between 2d136fe and b547989.

⛔ Files ignored due to path filters (1)

• docs/overview.svg is excluded by !**/*.svg

📒 Files selected for processing (1)

• docs/overview.md

📜 Review details

⏰ Context from checks skipped due to timeout. (15)

• GitHub Check: Pyright
• GitHub Check: Pylinter
• GitHub Check: build-pr
• GitHub Check: unit_tests (3.13)
• GitHub Check: unit_tests (3.12)
• GitHub Check: integration_tests (3.12)
• GitHub Check: integration_tests (3.13)
• GitHub Check: Konflux kflux-prd-rh02 / lightspeed-stack-0-7-on-pull-request
• GitHub Check: E2E: library mode / ci / group 3
• GitHub Check: E2E: library mode / ci / group 1
• GitHub Check: E2E: server mode / ci / group 2
• GitHub Check: E2E: server mode / ci / group 3
• GitHub Check: E2E: server mode / ci / group 1
• GitHub Check: E2E: library mode / ci / group 2
• GitHub Check: E2E Tests for Lightspeed Evaluation job

🧰 Additional context used

📓 Path-based instructions (1)

**/*

📄 CodeRabbit inference engine (Custom checks)

**/*: Flag meaningful O(n^2)+ algorithms on non-trivial inputs, including handlers and Kubernetes list operations.
Flag N+1 patterns that list items and then query once per item, including Kubernetes API and database access.
Flag expensive work inside loops, including API calls, JSON parsing, and regex compilation.
Flag unbounded growth in caches, watchers, or buffers when eviction or limits are missing.
Flag missing pagination or limits on list operations and API endpoints.
Flag secrets or tokens logged in plaintext or hardcoded in source.
Flag API endpoints missing authentication or authorization.
Flag injection vulnerabilities, including SQL injection, command injection, and path traversal.
Flag sensitive data leaked in API responses, WebSocket messages, or logs.
Flag Kubernetes Secrets and Red Hat secrets missing OwnerReferences.

Files:

• docs/overview.md

🔇 Additional comments (2)

docs/overview.md (2)

7-7: LGTM!

Also applies to: 11-11, 15-22

---

26-26: 📐 Maintainability & Code Quality

Verify that the referenced diagram is shipped.

./overview.svg resolves to docs/overview.svg from this file. Confirm that the asset exists at that path, or update the reference.

[coderabbitai]

📐 Maintainability & Code Quality | 🟡 Minor | ⚡ Quick win

Remove the time-sensitive “Current version” wording.

Use “LCore is built on Llama Stack” unless this statement is intentionally version-scoped; the current phrasing is awkward and will age unnecessarily.

🤖 Prompt for AI Agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@docs/overview.md` at line 9, Update the introductory statement in the
overview documentation to remove the time-sensitive “Current version of”
wording, so it begins with “LCore is built on Llama Stack” while preserving the
remaining explanation.