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Changelog

All notable changes to CodeGraph are documented here. Each entry also ships as a GitHub Release tagged vX.Y.Z, which is where most people will look.

This project follows Keep a Changelog and adheres to Semantic Versioning.

[Unreleased]

Added

  • MCP / explore: codegraph_explore source sections now carry line numbers (cat -n style <num>\t<code>, matching the Read tool). This lets the agent cite file:line straight from the explore payload instead of re-opening the file just to find a line number — the dominant residual cost on precise-tracing questions. In an isolated A/B (answer a "which exact line" question with the relevant code already in the payload), the no-line-numbers arm spent 2 file Reads + a grep recovering the line number while the line-numbered arm answered with zero follow-up tool calls. Payload cost is small (~3-5%). Set CODEGRAPH_EXPLORE_LINENUMS=0 to disable.

Changed

  • MCP / explore: codegraph_explore output is now adaptive to project size. The tool used to apply a fixed 35KB cap regardless of how large the codebase was, which on small projects (~100 files) produced bigger responses than the agent's native grep+Read flow would have — exactly the scenario reported in #185. The budget now scales with indexed file count: small projects (<500 files) cap at ~18KB and skip the "Additional relevant files" / completeness / explore- budget reminders that earn their keep on bigger codebases; medium (<5,000) caps at ~28KB; large (<15,000) keeps the historical ~35KB; very large goes up to ~38KB. A new per-file char cap also prevents a single file with many adjacent symbols from collapsing into one whole-file dump (the Alamofire Session.swift case from #185). Per-file cluster selection ranks clusters that contain a query entry point ahead of dense declaration blocks, and whole-file "envelope" nodes (a class/struct that spans most of the file) are excluded from clustering so the methods the query asked about aren't buried under the container's opening lines. Measured against the same repos used in the README benchmark, end state with line numbers on: Alamofire ~60% smaller per call, Excalidraw ~32%, VS Code ~12%. Agent-trust floor still holds — the Relationships section, scored cluster selection, and structured-source output are all retained. Thanks to @essopsp for the repro.

Fixed

  • MCP: source-omission markers in codegraph_explore and codegraph_context output are now language-neutral (... (gap) ..., ... (trimmed) ..., ... (truncated) ...) instead of C-style // comments, which were misleading inside Python, Ruby, and other non-C fenced source blocks.

0.7.10 - 2026-05-19

Fixed

  • MCP: tools no longer silently fail to appear in clients on slow filesystems (Docker Desktop VirtioFS on macOS, WSL2). The initialize handshake was blocking on opening the SQLite database and bootstrapping the tree-sitter WASM runtime, which on slow I/O could exceed Claude Code's ~30s handshake timeout — leaving the codegraph process alive but unresponsive and no tools visible. The handshake now returns immediately and defers project open to the background; tool calls wait on the in-flight init rather than racing it with a second open. Closes #172. Thanks to @sashanclrp for the original report and detailed reproduction, and @sgrimm for the decisive wire capture that isolated the actual root cause.
  • CLI: terminal output no longer mojibakes on Windows PowerShell / cmd.exe during codegraph index and codegraph sync. The shimmer progress renderer writes from a worker thread via fs.writeSync(1, …) to keep the animation smooth while the main thread is busy in SQLite, which bypasses Node's TTY-aware UTF-8→codepage conversion — so glyphs like │ ◆ — were emitted as raw UTF-8 bytes and reinterpreted as the console's OEM codepage (CP437, CP936, …), producing strings like 鋍?[0m 鉒?[0m Scanning files 鈥?N found. CodeGraph now picks an ASCII glyph set on Windows by default (| * - instead of │ ◆ —); set CODEGRAPH_UNICODE=1 to opt back into the Unicode glyphs (e.g. on pwsh 7 with UTF-8 codepage), or CODEGRAPH_ASCII=1 on any platform to force ASCII (useful for log collectors / non-TTY pipelines). Closes #168. Thanks to @starkleek for the report and to @Bortlesboat for the initial PR.
  • MCP / search: module-qualified symbol lookups now resolve. The MCP tools (codegraph_node, codegraph_callees, codegraph_impact, …) accept module::symbol (Rust / C++ / Ruby), Module.symbol (TS / JS / Python), and module/symbol (path-style) — multi-level forms (crate::configurator::stage_apply::run) and Rust path prefixes (crate, super, self) are handled. Closes #173. Thanks to @joselhurtado for the detailed reproduction. Three underlying fixes:
    • The FTS5 query builder now treats :: as a token separator instead of stripping it to nothing, so stage_apply::run no longer collapses to the unsearchable stage_applyrun.
    • matchesSymbol falls back to a file-path containment check when qualifiedName doesn't carry the module hierarchy (Rust file-level functions, Python free functions in a package): a run in src/configurator/stage_apply.rs now matches stage_apply::run because stage_apply appears as a path segment.
    • Qualified lookups that don't match the qualifier no longer fall through to fuzzy text matches — stage_apply::nonexistent_fn returns null instead of resolving to an unrelated rollback in the same file.

0.7.8 - 2026-05-17

Fixed

  • opencode: install actually wires up the MCP server now. v0.7.7 wrote ~/.config/opencode/opencode.json, but opencode reads opencode.jsonc by default — so the codegraph entry never showed up in any opencode session. The installer now prefers an existing .jsonc, falls back to .json when only that exists, and creates .jsonc for greenfield installs. Re-run codegraph install --target=opencode after upgrading so the entry lands in the file opencode actually reads.

Added

  • opencode: installer now writes AGENTS.md (global ~/.config/opencode/AGENTS.md, local ./AGENTS.md) with the same codegraph usage guidance the other agents already received. Without it, opencode's model would call native Grep instead of the codegraph_* tools it could see in its MCP list.
  • User comments and formatting in opencode.jsonc survive install / re-install / uninstall round-trips — surgical edits via jsonc-parser rather than full-file rewrites.

0.7.7 - 2026-05-17

Added

  • Multi-agent installer (closes #137). codegraph install now opens with a multi-select prompt for Claude Code, Cursor, Codex CLI, and opencode — detected agents are pre-checked. Each writes its native MCP config + instructions file (e.g. ~/.cursor/mcp.json
    • .cursor/rules/codegraph.mdc, ~/.codex/config.toml + ~/.codex/AGENTS.md, ~/.config/opencode/opencode.json). The runtime MCP server was already agent-agnostic; this brings the installer to parity.
  • Non-interactive install flags for scripting / CI: --target=<csv|auto|all|none>, --location=<global|local>, --yes, --no-permissions, --print-config <id>.
  • codegraph init now auto-wires project-local agent surfaces for any agent configured globally. In practice: Cursor's .cursor/rules/codegraph.mdc is dropped on init so a single global codegraph install works in every project you open — no per-project re-install needed.

Fixed

  • Cursor: globally-installed codegraph reported "not initialized" in every workspace because Cursor launches MCP-server subprocesses with the wrong working directory and doesn't pass rootUri in the MCP initialize call. We now inject --path into Cursor's MCP args — absolute path for local installs, ${workspaceFolder} for global installs.

Changed

  • Agent-instructions template is now agent-agnostic. The previous template was inherited from the Claude-only era and prescribed "spawn an Explore agent" — a Claude Code-specific concept that confused Cursor's and Codex's agents and caused them to fall back to native grep even with codegraph available. The new template adds explicit "trust codegraph results, don't re-verify with grep" guidance and a clear tool-by-question matrix. Applies to ~/.claude/CLAUDE.md, .cursor/rules/codegraph.mdc, and ~/.codex/AGENTS.md.
  • codegraph install prompt order: agent picker is now step 1, before the PATH-install and location prompts.
  • Disambiguated "global" wording in install prompts ("Install codegraph CLI on your PATH?" vs "Apply agent configs to all your projects, or just this one?") — both used to say "Global" and read as duplicates.

Internal

  • New AgentTarget interface in src/installer/targets/ — adding a 5th agent (Continue, Zed, Windsurf, …) is a new file + one entry in registry.ts.
  • Hand-rolled TOML serializer for Codex (src/installer/targets/toml.ts) — no new dependency, scoped to the [mcp_servers.codegraph] table only, sibling tables and [[array_of_tables]] preserved verbatim.
  • +47 parameterized contract tests across the 4 targets — install idempotency, sibling preservation, uninstall reverses install, byte-equal re-runs return unchanged, partial-state recovery for Codex.

Based on substantive draft by @andreinknv (fork commit c5165e4). Thank you.

0.7.6 - 2026-05-13

Fixed

  • codegraph CLI failing with zsh: permission denied: codegraph after a fresh global install. The published 0.7.5 tarball shipped dist/bin/codegraph.js without the executable bit, so the shell refused to run it through the npm symlink. The build now chmod +x's the binary before packing.

    Already on 0.7.5? Either upgrade to 0.7.6, or unblock yourself in place:

    chmod +x "$(npm root -g)/@colbymchenry/codegraph/dist/bin/codegraph.js"