dsh-git-commit-agent
DSH plugin: a dedicated agent that plans exact Git commits from real repo state, binds approval to an immutable plan revision, and commits via a restricted, verified git executor.
- Stars
- 0
- Language
- TypeScript
- Created
- Sep 25, 2026
- Updated
- Oct 4, 2026
Introduction
dsh-git-commit-agent
A dedicated Git commit planning and execution agent for DSH.
The agent reads real repository state, proposes a small set of logically
coherent commits, shows the user an exact per-commit preview, and — only after
the user approves one specific plan revision — runs a restricted git executor
that stages exactly what was approved and verifies the result.
Planning and execution have different authority. Conversation never grants git write access.
GitLens entry ──▶ dedicated native session ──▶ status/diff analysis
│
plan revision + digest
│
user previews & approves (one revision)
│
restricted executor: exact stage → verify tree → git commit
│
report commits / partial failure / reconcile
Status
| Phase | State |
|---|---|
| P0 — host API verification | done, evidence in docs/P0-VERIFICATION.md |
| P1 — interactive planning (no real commit) | done: dedicated session composition, status/diff/read tools, whole-file plans, versioning, exact preview, old-revision invalidation |
| P2 — approval + execution loop | done: exact approval binding, executor, real add/commit, cancel, partial failure, hooks, reconciliation |
| P3 — hunk-level splitting, chat approval protocol | not started (by design) |
| GitLens button + DiffPane plan preview | implemented in client/client.js against the delivered better-sidebar seams; the boot graph carries the entry and the bundle is served — the browser render itself is not yet verified (see docs/P0-VERIFICATION.md §8.7) |
| Live DSH host integration | verified twice on 2026-09-14 (headless profile, scratch DSH_HOME): bare mount with inject: ['tools'] only, restricted 8-tool surface, guard denial, session visibility, uninstall disposal and a real commit — see docs/P0-VERIFICATION.md §7. The two rounds found and fixed three defects (missing lazy agents lookup; followup payload shape; default dataDir ignoring DSH_HOME) |
| Agent preset registration | implemented: the plugin registers itself as the git-commit agent preset through the host's ctx.agentPresets.register() (the same API the declarative @deepseek-ai/dsh-agent-preset plugin wraps), so it appears as a card in Settings → Agent presets; dedicated sessions bind that preset (meta.agentPreset + agentPresets.mount, the webhook session creator's pattern). Not yet verified on a live host (see Preset registration) |
122 automated tests pass against real, isolated git repositories (npm test).
Plan Inspector (including no active session)
With better-sidebar's inspectors feature, the plugin registers two stable
Inspector types: dsh-gca-plan (a publication snapshot) and dsh-gca-plans
(the recent-plan entry). The recent list uses the authenticated read-only
/git-commit-agent/api/plan-index route; it supports workspace-path filtering
and pagination without returning historical patches in list responses. The
current store keeps worktree paths rather than a separate registered workspace
identity, so the filter currently matches an exact worktree path.
明细 and 查看差异 on a transcript card navigate to the exact commit in one Inspector, rather than expanding a second copy of its details. Overview, commit index, dependency links, exclusions and revision delta navigate within that page. Diff is the saved publication patch (plain text), never a recomputed worktree diff. Truncated and unavailable historical previews remain explicit.
The source session belongs to the resource identity, not to its display seat. Opening a resource does not activate or resume its source session. Stable kinds allow the sidebar to restore references before any transcript mounts. Reopening the same revision updates its location; opening another revision uses a distinct resource id. Inspector mode does not poll full historical payloads or auto-open background publications; explicit navigation and list refresh never steal focus. Viewing is read-only and never constitutes approval.
Older sidebar installations without inspectors retain the session-scoped
native Plan tab fallback below (they cannot provide the no-session Inspector).
Full plan in the existing right sidebar (legacy fallback)
The prepare-plan transcript card now has 在侧栏查看完整计划. The page shows commit groups, the complete multi-line message, rationale, dependencies, file status/layer/rename/binary markers, stats, exclusions, warnings/blockers and the full revision/digest identity. Each group retains 查看差异. This is a read-only publication snapshot, not an approval surface; it remains available after an approval decision or execution.
While a dedicated commit session is mounted in the native right sidebar, the
client polls the plugin's authenticated, read-only plan route every two seconds.
The first successful response on initial load, every session switch or remount
is a historical baseline: it registers the pages without revealing them. Only
new identities seen subsequently in that same mounted session reveal a page.
Hidden browser documents do not reveal new plans. No private session event
source, conversation pagination hooks, approval listeners or apply_plan calls
are involved.
Native sidebar params/meta are transient and native opens ignore a seed's id.
Each revision therefore registers a hidden, stable tab kind encoding its session,
task, plan, revision and digest; repeated opens focus that same native page.
Payloads are stored atomically in private plugin presentation files and recovered
through /git-commit-agent/api/plan; legacy publications are recovered from the
session's durable successful prepare-tool results through a public read handle.
Recovery never recomputes patches from today's worktree. Missing historical
payloads are reported as unavailable, not invented. The sidebar layout itself
is managed by the host: if refresh collapses it, reopen the historical card.
Run npm run build for host artifacts. This package's hand-written client module
is already its served artifact; a browser refresh loads it. A running host must
reload/restart its existing plugin instance to mount new host HTTP routes (a
browser refresh alone cannot replace host code). Do not start another server to
update the original GUI. Authenticated browser rendering remains a separate
manual check when this agent has no browser session/cookie.
Command palette modes
The command palette offers two independent actions (search commit / 提交):
- 在当前工作区启动 Commit Agent / Start Commit Agent in Current Workspace: keeps the original behavior — creates a dedicated session in the current registered workspace, installs the plugin's restricted tools, applies the configured default model, and submits the planning request.
- 将提交规划 prompt 填入当前会话 / Fill Commit Planning Prompt in Current Session: fills and focuses the current session input box only. Review/edit the prompt and send it manually. It does not create or navigate to another session, change the model/preset, install tools, or automatically submit. The prompt follows the configured prompt language and asks the agent to use its existing tools to inspect changes, propose commit groups, and wait for explicit approval before staging/committing. This is an ordinary agent conversation, not the plugin's revision/digest-bound approval and restricted executor workflow.
Both actions require the current main-view session to belong to a registered workspace. Input mode refuses to replace existing text, inline references or attachments, or a composer in a non-plain admission phase; send/clear the draft first. Existing session capabilities are preserved, not replaced with a new tool surface (including when the current session is already a dedicated commit agent).
Prerequisites
- A default model, or an explicit one. The dedicated session drives a real
agent turn. Configure
agentOptionsin the cordis row, or make sure the profile has a default model selected; otherwise the first turn ends at prompt assembly withprompt variable "{{model}}" has no value. - A writable data directory. It defaults to
$DSH_HOME/git-commit-agent(DSH_HOMEis respected; falls back to~/.dsh/git-commit-agent). Pointconfig.dataDirelsewhere if that is not writable — an unusable path fails loudly asDATA_DIR_UNAVAILABLEbefore any session is created. - Session persistence, if you want
resumeto work after a restart.
Install
dsh plugin --profile <name> add dsh-git-commit-agent
The bundle mounts itself through dsh.bundle.patch in package.json and
cordis.patch.yml. See that file for the optional config block
(dataDir, lockDir, agentOptions).
The plugin mounts with inject: ['tools']. The agent registry is used lazily;
calling the dedicated-session API on a host without one fails with a clear
INTERNAL error instead of degrading silently.
Agent preset registration
On a host with the agent-preset registry (agentPresets service), the plugin
registers itself as the git-commit agent preset from apply():
ctx.agentPresets.register({
id: 'git-commit', // COMMIT_AGENT_PRESET_ID
name: 'Git Commit Agent',
order: 30,
plugins: [{ id: 'tool-fs', name: '@deepseek-ai/dsh-tool-fs' }],
})
This is the same API the declarative @deepseek-ai/dsh-agent-preset plugin
row wraps (PresetDefinition), just invoked from the plugin's own mount so the
definition cannot drift from this plugin's code. What it buys:
- the preset appears as a card in Settings → Agent presets
(
ui-agent-presetAgentPresetSection): viewable (its composition YAML) and selectable as the default — with zero client-side changes; - dedicated sessions bind that preset: the create/resume
setupcallsagentPresets.mount(agentCtx, 'git-commit')and the session header recordsagentPreset: git-commit, exactly like DSH's webhook session creator.
The composition supplies only the official native filesystem tools. Git capabilities
arrive from this plugin's host-plane installation (agent/created +
session-git-commit- prefix + restrict/guard), so the preset must not
declare dsh-git-commit-agent as a composition row — that would mount a second
plugin instance inside the preset scope (a second service, shared store, races)
and fail the registry's root-realm service-leak audit, marking the card broken.
Registration waits for the registry through Cordis
ctx.inject(['agentPresets'], callback); patch row order does not guarantee
service readiness. The dependency child owns unregistration, including teardown
while the registration promise is pending. Minimal embedders without inject
retain the one-shot lookup fallback. A successful registration logs
dsh-git-commit-agent: preset git-commit registered.
Current limitation: selecting this preset for an ordinary session does not install the Git-specific tools or the dedicated authorization scope: that installation still requires the dedicated session-id prefix. The ordinary session receives the preset's native filesystem tools under normal host policy. Do not treat this entry as a complete, independently usable default agent preset. A future composition entry must supply the tools and prompt by preset scope rather than by session id.
Prompt language preference
Both session entry paths (the GitLens button and the host startDedicatedSession
API) seed a prompt in one language, chosen from a single durable preference:
- the plugin declares a volatile settings field
promptLanguage(zh|en|follow-ui) on its own profile entry — the locale-preference template; the preset-card Configure button writes it throughconfigFormswith no custom persistence; follow-uidelegates to the active UI locale; a pinned value wins;- the host plane (no UI locale of its own, e.g. the business API) defaults to
en; the client plane falls back to its historical Chinese default only when neither a preference nor a UI locale is available; - the language is resolved at session admission and frozen into the first prompt; a settings change never rewrites a running session's text, and the client UI strings, the approval copy and the prompt language remain three independent text planes.
- the prompt itself is not the whole story: both the system prompt and the
first user message require the agent to drive the entire workflow through
the five tools (never guessing state or describing a plan without
commit_agent_prepare_plan) and require every user-facing message — analysis, plan explanation, suggested commit messages and progress reports — to be presented in the prompt's language (中文 forzh, English foren), so the session reads fluently in the chosen language even though the third planes (button labels, approval copy) keep their own translations.
Implementation: src/config.ts owns the shared resolver, src/host/session.ts
builds both languages (default en), client/client.js mirrors the same rules.
Both fields become editable through the preset-card Configure button
(settings.agentPreset.card.action slot).
Default LLM model preference
Both session entry paths (the GitLens button and the host startDedicatedSession
API) can pin which LLM model the dedicated session runs on, chosen from the
host's model list (the same provider-grouped catalog the settings models
page renders):
- the plugin declares a volatile settings field
defaultModel({ provider, model }) on its own profile entry; the preset-card Configure dialog renders a picker populated fromremote.session.modelCatalog()and writes the exact route throughconfigForms; - no default model is a valid preference: the picker's first option is
"follow the host default (not specified)", which clears the field — the
deployment
agentOptionsrow or the host default model then applies; - precedence at session admission: stored
defaultModel(user's explicit choice, from the Configure dialog) → deploymentagentOptionsrow → host default. The stored route overrides only the row's provider/model; other row options (reasoningEffort,maxTokens) are preserved; - the button path applies the stored route right after session creation
through
remote.session.selectModel— the same durable per-session selection the composer model seat installs — so the first prompt's request header is built with it; the host API path passes it asagentOptions; - a missing remote surface or a route that vanished from the catalog degrades silently to the host default: model pinning never blocks starting a session.
Implementation: the schema field and the admission-time resolution live in
src/index.ts (COMMIT_AGENT_DEFAULT_MODEL_FIELD, resolveAgentOptions),
src/config.ts owns the tolerant validator, and client/client.js owns the
catalog picker and the selectModel application.
Dynamic native editing (fixed tool surface)
Commit sessions declare the Git tools plus native read and edit from their
first model request. commit_agent_request_edit changes host-owned authorization,
not tool schemas or system prompts, preserving the unchanged request prefix for
provider prompt caching (actual cache hits depend on the provider).
When planning reveals a necessary correction:
- Inspect the bound worktree.
- Call
commit_agent_request_editwith exact repository-relative existing filepathsand areason; the host asks the user through its approval service. - Use native
readbeforeedit, even ifcommit_agent_read_filesalready read the file. Only explicitly approved files can be edited. - Inspect again, prepare a new plan revision, and obtain fresh commit approval.
action=status lists grants; action=revoke clears them. Grants are ephemeral,
scoped to the current agent session, and never restored after restart/disposal.
Editing authorization never approves a Git commit. An authorized edit attempt
invalidates earlier ready/draft plans and their approvals, conservatively even
if the edit fails or is cancelled. Native operations and Git execution share an
in-process worktree lease, held through asynchronous completion.
This plugin reuses the host's native tools; it does not implement an editor or
bypass filesystem policy. The deployment must provide inherited native read
and edit, a confined filesystem provider, and fs-observation-policy. Native
edits remain subject to those host policies. Missing tools fail installation
closed; missing scoped execution interception prevents edit authorization.
No shell, write, network or delegation capability is added.
Both native reads and edits reject out-of-worktree paths, Git metadata, sensitive credential files, symlinks and non-regular/missing files. Permission escalation arguments are rejected. Validation is repeated at dispatch; the in-process lease does not lock external editors or other processes, and path checks and the host's sandbox containment are not a kernel security boundary; adversarial concurrent filesystem path swaps remain outside this threat model.
Tools exposed to the dedicated agent
| Tool | Purpose |
|---|---|
commit_agent_inspect | the single state tool, mode=status (default: HEAD, branch, index state, index rule, in-progress operations, every pending change with a content-addressed changeId, existing plan revisions) / mode=recent (subjects for style) / mode=reconcile (match one plan revision against real history after a crash or failed execution) |
commit_agent_diff | the single diff reader: the full working-tree diff, one change's diff, or the exact per-commit diff a planned revision would introduce — filterable to one commit (commitId) and one file (path), so a large file can be read in full while the whole-plan preview stays capped |
commit_agent_read_files | the single file reader: bounded contents of specific repository paths; secrets and binaries excluded with a reason |
commit_agent_prepare_plan | prepare a new immutable plan revision; the host validates, computes every expected tree, returns the preview |
commit_agent_apply_plan | submit one revision to the human's plan-review panel and, once approved, execute it; the host verifies approval, digest, snapshot and staged tree |
commit_agent_request_edit | request user authorization for exact existing files, list current grants, or revoke them |
Native read / edit | host-provided file observation and literal editing; edit is locked until a matching user grant exists |
There is no shell, no arbitrary git invocation, no cwd, no file write, no
network and no delegation tool.
How approval works
The model can propose, preview and explain — it can never approve. Approval goes
through the host's standard approval service (ctx.approval.request()), so the
user answers through a host-owned protocol. The request supplies the short
question as reason, localized question copy as displayReason, and the exact
plan revision's Markdown document as detail. Hosts supporting approval
Markdown detail render it in the ApprovalPanel using the shared safe Markdown
renderer; older hosts show the question only, with the prepare card still
available in the transcript. The document lists per commit the frozen file paths
(status + layer), the --numstat counts and the base→expected trees; revisions
stored before review details existed fall back to change ids with an explicit
note. commit_agent_apply_plan submits one exact revision; only allowed-once
grants approval, and a newer revision revokes an older approval. Only after the
decision does the host execute — the same call returns the execution result.
approvedBy is recorded as user:approval — an audit label, not a cryptographic
identity: DSH has no authenticated in-process user identity, and any in-process
plugin can call the business API's approvePlan directly.
Trying it
From the command palette or GitLens. When commandPalette is installed,
search for 在当前工作区启动 Commit Agent / Start Commit Agent in Current Workspace
(command ID dsh-git-commit-agent.start-current-workspace). The entry follows the
CMD descriptor protocol: independent localizedTitles for the command and its
Git 提交助手 / Git Commit Agent plugin tag (stable tag ID
dsh-git-commit-agent), a git identity icon and a create action icon for
creating the planning session. Both languages are searchable regardless of the
active locale; the palette owns bilingual display and fuzzy matching. The
single-language title remains a dynamic fallback for older palette versions.
It resolves the workspace owning the current main-view session from the public session and
workspace stores; an ungrouped session or no current session disables the command.
The action rechecks the target and creates the same dedicated session with the
stored model/language preferences, opens it, and seeds/submits the planning prompt.
It does not infer a workspace from palette invocation context, DOM focus or cwd,
and does not preflight Git status: the dedicated agent inspects repository state.
Registration is optional through ctx.inject(['commandPalette']); the child effect
owns command/subscription disposal and store changes refresh command availability.
Cancellation before creation prevents it; cancellation after creation does not
remove the session, but stops subsequent navigation/submission where possible.
No palette runtime import, required loading dependency or new shortcut is added.
This integration has automated client tests, not live browser verification.
From GitLens, with pending changes, click the commit-node icon in the commit row (next to the built-in Commit button; its tooltip reads 在新会话中规划并提交这些变更). The plugin opens a new session in the selected worktree, seeds the planning request and submits it.
The entry is usable as soon as git status shows any change — staged,
unstaged or untracked. With an empty index the plan stages the working-tree
changes itself before committing (per PLAN §7, index-empty mode); you never
have to git add first.
An ordinary chat session does not see the commit tools, and cannot start this workflow by asking. The five tools are installed into exactly one agent scope, the session the button creates — never into every session.
Per-session tool injection
DSH resolves a tool surface per agent scope: register() on a plugin's own
context is visible to every session, while register() on an agent's
agent.ctx is visible only to that agent. Mounting the five tools globally was
the original shortcut, and it put them in every session's model surface.
Instead, the host half installs them on agent/created for agents whose session
id carries the reserved prefix session-git-commit-
(src/host/tools.ts COMMIT_AGENT_SESSION_PREFIX). Since the GitLens button
cannot call AgentRegistry.create from the browser, it preallocates such an id
through the public ISessions.create({ sessionId }) contract; a session created
through the business API's startDedicatedSession gets one from the same
newSessionId default. Installation adds, in the target scope only:
- the five tool definitions,
restrict({ allow: [] }), which hides the entire inherited surface (the global layer plus every preset/standing ancestor layer) and leaves only the scope's own five visible,- the terminal
guard, which allow-lists the five by name and fails closed.
agent/created fires during registration — before agent/session-start and the
first prompt assembly — for both create and resume, so the first model
request already runs against the closed surface.
Native Git More action slot
The Git command More menu contains 规划并提交 (plan and commit),
with an agent subtitle badge on the right. Its MenuItemButton children
use the public label layout: span[data-better-sidebar-git-action-label]
contains span[data-better-sidebar-git-action-title] (the existing title) and
span[data-better-sidebar-git-action-subtitle] (agent). Better-sidebar owns
the shared truncating title / trailing token-badge styling; this plugin adds
no layout CSS or runtime imports and does not misuse the shortcut field.
Older hosts without that shared styling still render both text spans.
The client uses ctx.slots.inject('betterSidebar.git.actions', () => ctx.slots.register({ name: 'betterSidebar.git.actions', id: 'dsh-git-commit-agent:plan-and-commit', order: 50 }, Component)).
This is the better-sidebar list / root protocol, not the legacy
registerGitCommitAction registry; the same operation is never registered twice.
The contribution uses the shared MenuItemButton and the live owner props
(GitActionSlotProps, publicly exported by
dsh-better-sidebar/client/service). Its target is the slot owner's
scope / worktree / repoRoot, never a header session id. It is disabled
while the owner's busy is true or no changes exist; staged, unstaged and
untracked changes all remain supported. Selection closes More before starting
and runs session creation through props.runAction, which owns mutual exclusion,
error reporting and refresh after success even when the menu item unmounts.
No dialog is opened by this action; the preset configuration dialog is unrelated
and remains outside the Git menu.
The existing reserved session prefix, workspace grouping, stored default model,
prompt-language choice and automatic planning-prompt submission are unchanged.
The client stays a hand-written lazy-CJS bundle: it does not runtime-import
better-sidebar (nor add a TypeScript-only dependency just for its props type).
The platform supplies @deepseek-ai/dsh-client-ui-primitives at runtime.
Slot injection manages owner arrival, teardown and re-registration. On older
better-sidebar versions without this slot, the Git menu entry is unavailable;
the plugin's tools, plan views and preset configuration remain available. There
is deliberately no legacy fallback that could duplicate the new menu entry.
Session grouping (工作区归属)
DSH's sidebar groups sessions by Workspace membership, not by working
directory: the tree looks up the workspace whose sessionIds contains the
session and otherwise drops it into the 未分组 (Ungrouped) bucket
(ui-workspace/src/client/tree.ts). A session only joins a workspace when it is
created through that workspace — the host attaches it in
SessionCommandController.create solely for the { workspaceId } branch; a
{ cwd }-only session is never a member even when its cwd is a registered
workspace.
This plugin therefore resolves the target directory against the host's
workspaces list and passes workspaceId when it matches, so the planning
session appears under the original workspace. When the target is a linked git
worktree that is not itself a registered workspace, the cwd cannot be attached
(the host requires the session cwd to realpath-equal the workspace path), so the
session stays ungrouped by design; register that worktree as a workspace to have
it grouped. The host-side startDedicatedSession API does the same through
ctx.workspaceRegistry / workspace.attachSession.
Either way the flow is the same:
- the agent calls
commit_agent_inspect(mode=status), reads the real diffs (commit_agent_diff) and file contents (commit_agent_read_files), and prepares a plan (commit_agent_prepare_plan); - the plan appears as a transcript card: a summary (revision, commit count,
file count, per-commit
+/-), expandable per-commit file lists marked with git/VSCode status symbols (M/A/D/R/C/T/U/?+ staged/ unstaged layer), exclusions and warnings, a revision delta ("what changed since rev N": files moved between commits, reworded messages, new exclusions), and a collapsed technical section (plan id, digest, trees). Each commit opens as a versioned proposed diff in the sidebar's DiffPane (the tab id carries the revision, so two revisions never share one tab; the seed carriestruncatedand asourceRefsnapshot label the sidebar shows as display-only metadata; file rows jump to the live file in the sidebar editor, diff rows open it at the line — the patch itself stays a read-only snapshot; stats and file lists always come from the untruncated--numstat); - the agent calls
commit_agent_apply_planand you decide in the host's ApprovalPanel — its Markdown document lists each file with a porcelain-XY status symbol (first slot staged, second unstaged;??untracked), the stat and the trees, all from the plan's frozen review detail, never live worktree reads; - only after your approval does the host execute — the same call then returns the execution result (commits landed, or why it stopped).
The client half is one hand-written lazy-CJS file (client/client.js): no
bundler, no JSX, no CSS modules, and no typert Remote — the button uses only
public client APIs, so it adds no dependency on the host's internal symbol
tables.
Business API
import { apply as mount } from 'dsh-git-commit-agent'
const plugin = mount(ctx, { dataDir: '~/.dsh/git-commit-agent' })
plugin.api.toolNames // the five tool names
plugin.api.systemPrompt()
await plugin.api.startDedicatedSession({ workspacePath, sourceSessionId, userConstraints })
await plugin.api.openTask({ sourceSessionId, agentSessionId: null, workspaceRoot })
await plugin.api.approvePlan({ taskId, planId, revision, planDigest, requestId, approvedBy })
await plugin.api.executePlan({ taskId, planId, revision })
plugin.api.cancel(taskId)
await plugin.api.reconcile(taskId, planId, revision)
approvePlan must only be called from a user-initiated surface (the plan card),
never from the model. The model's tools cannot reach it.
Architecture
client/client.js hand-written lazy-CJS browser half (button + plan cards)
src/core/ host-agnostic, fully testable
errors.ts coded error taxonomy
types.ts task / snapshot / plan / execution domain model
git/runner.ts restricted git runner: fixed args, scrubbed env, literal pathspecs
git/snapshot.ts status parsing, per-change content digests, consistency re-reads
plan/validate.ts coverage, duplicates, cycles, v1 refusals
plan/digest.ts canonical approval digest
plan/materialize.ts temporary-index materialisation → exact expected trees
plan/lock.ts in-process + on-disk worktree lock
plan/executor.ts approved execution, tree verification, reconciliation
store/store.ts atomic, append-only task/plan/execution store
service.ts orchestration used by the tools
src/host/ structural mirrors of the verified DSH contract
types.ts host service faces (no compile-time host dependency)
tools.ts the five ToolDefinition objects + per-session scope install
session.ts dedicated normal session, prompts
src/index.ts Cordis plugin: apply(ctx, config) + business API
Nothing under src/core/ imports a host package, which is why the whole engine
is testable with plain Node.
Preview is exact, not approximate
For every planned commit the host computes the tree it must produce, starting from HEAD (or from the user's own index when staged content is being reused) in a temporary index. The preview diff is the real diff between the parent tree and that expected tree. Execution re-computes the same trees immediately before committing and refuses to proceed if they differ. This is why a plan can never claim one thing and commit another.
Safety highlights
- approval is bound to
(revision, content digest); publishing a new revision revokes every earlier approval; - the real index tree is compared to the approved tree before
git commit; - HEAD is re-read after every attempt, including failures and cancellations, so a commit that landed is recorded, never retried;
--no-verify,--amend,reset,pushand history rewriting are never used;- existing staged content is respected and never split;
- hooks, identity and signing behave exactly as the user configured them;
- secret-looking files are not sent to the model;
- all plugin state is written outside the target repository.
Full model: docs/SECURITY.md.
Development
npm install
npm run verify # typecheck + build + 89 tests against real isolated git repos
npm run build
Tests never touch a user repository: every fixture is a fresh temp repo with pinned identity, signing disabled and its own hooks path.
Component → source locator (dev-only)
@havocrao/dsh-code-finder is wired in as a dev dependency so that holding
Opt+Shift and hovering a CommitAction / PlanCard / ApprovalCard
element in the DSH web UI shows client/client.js:line:col.
npm run inject:dev # NODE_ENV=development dcf instrument client --write
npm run inject:revert # restore the tracked file when you are done
This project has no bundler config, so — unlike the tsdown/vite plugins — the
elements are located by the standalone instrument entry applied to the
hand-written client bundle. The overlay and the /code-finder/api/* routes come
from the host: cordis.patch.yml here is a plugin-type patch (insert-only), so
dcf init intentionally adds no mount row (the host layer owns it).
Two things to keep in mind:
client/client.jsis tracked source, not a build artifact. Injection reprints it (+1063/−219lines) andprepackonly runstsc, so it will not be restored for you — runnpm run inject:revertbefore committing ornpm pack. Injection is idempotent and reverting is byte-exact.- Name-level search needs a root. Precise coordinates come from the
injection; the declaration-name fallback additionally requires this repo's
client/directory in the profile roots:dcf roots add web "$PWD/client"(idempotent). Roots are read at boot, so restart the host after changing them (dsh web stop && dsh web).
See docs/README.md in the DSH-code-finder repo
("零构建插件" and "C. cordis 纯 runtime") for the full contract.
Not in this version
No push, no history rewriting, no automatic rollback of completed commits, no
--no-verify, no automatic code fixes, no hunk-level splitting, no second chat
UI, and no modification of the official DSH checkout or its generated artifacts.