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rpg-encoder MCP Server

Semantic code graph for AI-assisted code understanding via tree-sitter and MCP.

Publisher claimed. No tool list reported, and Pod has not connected to this server.

Status

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Connect

Published as rpg-encoder on npm. Runs locally.

Known issues

37 problems reported by people outside the maintainer team. Issues filed by the project's own owners, members and collaborators are excluded — those are release checklists and internal refactors, not things that will go wrong for you. Showing 12.

Most discussed

[BUG] Windows Path Format Mismatch in Entity IDs

Windows Path Format Mismatch in Entity IDs

Summary

On Windows, entity IDs stored in the RPG graph contain backslashes (e.g., app\public\electron.js:showRepoWindow), but users submitting lift results via the MCP tool use forward slashes (e.g., app/public/electron.js:showRepoWindow). This causes key mismatch failures during submit_lift_results on Windows.

Root Cause

The id() method in RawEntity uses self.file.display() which outputs platform-specific path separators. On Win

Read the thread · 2026-02-21 · closed · outside contributor · 3 comments

[Feature] Add detect_cycles MCP Tool for Circular Dependency Detection

Summary

Implement a new MCP tool detect_cycles that identifies circular dependencies in codebases using the RPG dependency graph.

Motivation

Circular dependencies are architectural smells that:

Currently, the RPG system provides dependency graphs but lacks a dedicated tool to detect and report circular dependencies. Users need a way to:

  1. Id

Read the thread · 2026-02-26 · closed · outside contributor · 2 comments

Feature: Implement Code Health Analysis Tool (rpg_analyze_health)

Summary

Implement a new MCP tool analyze_health that provides code health metrics including coupling analysis, instability detection, centrality scoring, god object identification, and two types of duplication detection (token-based and semantic).

Motivation

This feature implements the Code Health Meter (CHM) framework described in the research paper, providing RPG users with actionable insights into code architecture quality. The tool enables:

Read the thread · 2026-02-25 · closed · outside contributor · 2 comments

[BUG] semantic hierarchy fails to apply on Windows due to path mismatch

Problem Summary

The RPG (Repository Planning Graph) MCP server fails to persist semantic hierarchy assignments on Windows systems due to path separator mismatches between the internal graph representation and user-provided assignments.

Image

Detailed Description

Symptoms

Read the thread · 2026-02-22 · closed · outside contributor · 2 comments

fix plan_change root scope handling

Issue: plan_change(scope=".") does not search from repository root

Summary

The plan_change tool should treat scope="." as repository-root scope, equivalent to an unscoped search. Instead, it can return No relevant entities found even when the same query succeeds without a scope or with an explicit hierarchy path.

This breaks a reasonable caller expectation that . means "search from the root of the semantic hierarchy".

Problem

plan_change delegates its candidate discovery

Read the thread · 2026-04-08 · closed · outside contributor · 1 comment

Most recent

Embedding model is hardcoded to non-code BGE-small-en; make it selectable (add code-specialized option)

Problem

Semantic search embeds entities with a model hardcoded in crates/rpg-nav/src/embeddings.rs: EmbeddingModel::BGESmallENV15 (BAAI/bge-small-en-v1.5, 384d). That is a general English-text model, not code-specialized — suboptimal for ranking code intent/features. The dimension is a compile-time const, so no other model can be used without code changes, and there is no way to evaluate a code-specialized embedder.

Proposed solution

Read the thread · 2026-05-29 · closed · 0 comments

Add an Ollama lift provider for free local semantic lifting

Problem

Semantic lifting currently runs through either the connected coding agent (MCP LIFTER PROTOCOL) or an external paid API (AnthropicProvider, OpenAiProvider in rpg-lift). For users who want to lift a large graph without spending API tokens or routing code through a hosted model, there is no fully-local option. Lifting is the most token-expensive step in building an RPG, so a free local path materially lowers the cost of adoption and keeps code on-device.

Proposed solution

Ad

Read the thread · 2026-05-29 · closed · 0 comments

[BUG] fetch_node and explore_rpg reject batch-only payloads (missing field "entity_id")

Description

fetch_node and explore_rpg advertise a batch mode via entity_ids (an Option<Vec<String>>), and the doc comment on entity_ids says it "overrides entity_id when provided". The handlers in crates/rpg-mcp/src/tools.rs are written for either-or semantics — they check entity_ids first and only fall back to entity_id.

But the serde deserialization rejects any call that omits entity_id, because the field is declared String (required) rather than Option<String>. S

Read the thread · 2026-05-17 · open · external user · 0 comments

Cross-root MCP support

Cross-root MCP support

Problem

The MCP server was effectively tied to a single startup root. Tools could not reliably inspect or operate on another repository without switching the whole session, and state handling around alternate roots was inconsistent.

Needed feature

Add a universal per-call project_root override across the MCP tool surface, while keeping set_project_root as the explicit way to change the default root for later calls.

Required behavior

Read the thread · 2026-04-21 · open · outside contributor · 0 comments

Allow live project root switching and temporary root overrides

Issue Draft: Cross-Root RPG Exploration for MCP

Summary

The MCP server can currently operate only on its active project_root, which is set at startup and then reused by all read-only semantic tools. This makes it difficult to inspect an external repository graph from a long-lived session rooted in another workspace.

We need a way to query another codebase temporarily, without permanently switching the server session root.

Problem

The current exposed rpg_development_* tool set incl

Read the thread · 2026-04-17 · open · outside contributor · 0 comments

feat: autonomous LLM-driven lifting (rpg-lift crate)

Problem

rpg-encoder requires a connected coding agent (Claude Code, Cursor, etc.) to perform semantic lifting via MCP tool calls. Microsoft's RPG-ZeroRepo uses a fire-and-forget autonomous pipeline that calls GPT-4o directly, enabling headless CI/CD lifting without human interaction.

Solution

Add a new rpg-lift crate that provides autonomous batch-mode lifting via cheap LLM APIs:

Read the thread · 2026-02-27 · closed · 0 comments

refactor: clean up cycles.rs code quality issues

Problem

PR #61 (detect_cycles) introduced three code quality issues identified during post-merge review:

  1. Hand-rolled glob_match() — cycles.rs implements a naive glob matcher when globset is already a workspace dependency, and the ignore crate is used elsewhere for .rpgignore handling
  2. Inline TOON formatting — ~130 lines of TOON formatting live inside the detect_cycles tool handler in tools.rs instead of in toon.rs (where format_health_report() lives)
  3. **Duplicat

Read the thread · 2026-02-27 · closed · 0 comments

See all 17 reports Pod holds for rpg-encoder — of 37 qualified upstream.

Firsthand observations

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