feat(agent): support repo_context_files on LocalGitProvider via shim

CHANGELOG.md

@@ -11,6 +11,7 @@ and the versioning follows [Semantic Versioning](https://semver.org/).
 
 - Binary files in the diff (images, office documents, PDFs, …) now show their Git LFS status — a "Git LFS · <size>" tag for LFS-managed files, or a "⚠ Not LFS" tag for files stored inline in git.
 - Comments can now be anchored to a whole file (not only a single line) where the platform supports it (Bitbucket / GitHub): a "comment on file" entry in the diff, and existing file-level comments now display correctly instead of being shown as generic PR comments.
+- Reviews now pick up the reviewed repository's own guidance file (`AGENTS.md`) as project context, so the review, description, and suggestions follow the project's stated conventions.
 
 ## [0.11.0] - 2026-07-07
 

CHANGELOG.zh-CN.md

@@ -11,6 +11,7 @@
 
 - diff 中的二进制文件（图片、Office 文档、PDF 等）现会显示其 Git LFS 状态——受 LFS 管理的文件显示「Git LFS · <大小>」标记，直接内联存入 git 的文件显示「⚠ 非 LFS」标记。
 - 现可对整个文件（而不仅是某一行）添加评论（平台支持时，Bitbucket / GitHub）：diff 中新增「对文件评论」入口，且已存在的文件级评论现能正确归属显示，不再被当作 PR 通用评论。
+- 评审现会读取被审仓库自身的规范文件（`AGENTS.md`）作为项目上下文，使评审、描述与建议遵循该项目既定的约定。
 
 ## [0.11.0] - 2026-07-07
 

apps/desktop/scripts/pragent-shim/meebox_pragent_shim/patches/local_git_provider.py

@@ -1,4 +1,4 @@
-"""LocalGitProvider patch (version-guarded): binary-safe get_diff_files + get_line_link anchor."""
+"""LocalGitProvider patch (version-guarded): binary-safe get_diff_files + get_line_link anchor + repo-context file fetch."""
 from ..runtime import _EXPECTED_PRAGENT_VERSION, _pragent_version, _warn
 
 
@@ -122,3 +122,29 @@ def get_pr_labels(self, update=False):
         return []
 
     module.LocalGitProvider.get_pr_labels = get_pr_labels
+
+    # get_repo_file_content: pr-agent 0.39.0's configuration.toml ships a new default
+    # `repo_context_files = ["AGENTS.md"]` — build_repo_context() fetches those files from the reviewed
+    # repo and injects them as <instruction_files> so /review /describe /improve follow the project's own
+    # conventions. The base class returns "" (no-op), so LocalGitProvider is judged "does not support
+    # repository file fetching" and logs a WARNING each run while silently skipping the feature. Implement it
+    # by reading the blob straight from the base branch's tree object (not the working tree): the review's diff
+    # is head.commit vs merge-base(target_branch_name), and target_branch_name is the branch the PR merges
+    # into — the trusted "default/base branch" content the feature wants (repo_context_from_default_branch=true).
+    # Reading the tree object (never the working tree) also keeps this independent of _prepare_repo's working-tree
+    # sanitizing of agent instruction files (that guards the /ask CLI subprocess; repo_context serves the other
+    # tools). A missing file / any git error degrades to "" (no context) rather than raising, so
+    # build_repo_context treats it as "no context" and never caches a fetch error.
+    def get_repo_file_content(self, file_path, from_default_branch=False):
+        rel = (file_path or "").lstrip("/")
+        if not rel:
+            return ""
+        try:
+            # For a local provider there is no remote "default branch" distinct from the PR base, so both the
+            # default-branch and target-branch cases collapse to target_branch_name (guaranteed to exist by
+            # _prepare_repo). `git show <ref>:<path>` returns the file text, or errors if the path is absent.
+            return self.repo.git.show(f"{self.target_branch_name}:{rel}")
+        except Exception:
+            return ""
+
+    module.LocalGitProvider.get_repo_file_content = get_repo_file_content

docs/arch/02-agent/05-pragent-runtime.md

@@ -62,6 +62,7 @@ Current patches:
   letting `/review`'s key_issues render with a structured file:line.
 - **Anthropic drops temperature**: new Claude models deprecate temperature, so all `anthropic/*` are put into the "don't send temperature" set.
 - **load_yaml tolerance**: an anchor marker taking a whole line breaks YAML → on parse failure, strip the marker and retry, avoiding a whole review crash.
+- **repo-context file fetch**: pr-agent 0.39.0 defaults `repo_context_files = ["AGENTS.md"]`, but `LocalGitProvider` inherits the base no-op `get_repo_file_content` → the feature is skipped with a per-run WARNING. Implement it by reading the blob from the base branch's tree (`git show <target_branch>:<path>`, never the working tree), so `/review /describe /improve` inject the reviewed repo's `AGENTS.md`/etc. as `<instruction_files>`; a missing file degrades to `""`.
 - **Local CLI provider**: when `MEEBOX_CLI_MODE` is set, replace `chat_completion` wholesale with the "call the local CLI" version (see below).
 - **token usage collection**: see below.