fix: fix set-commits --auto, document release workflow pitfalls

- Rewrite setCommitsAuto: list org repos via paginated API, match
  against local git remote, fetch previous release commit for range,
  send real refs with HEAD SHA and previousCommit
- Use ValidationError for local git failures, ApiError for no-repos
- Catch ValidationError in setCommitsDefault for graceful fallback
- Add checkout, setup-node@v6, environment: production to workflow
- Move --url from release create to deploy step
- Add workflow_dispatch trigger and failure issue creation
- Document pitfalls in agent-guidance.md, release.md, help text
- Regenerate SKILL.md and reference files
- Add comprehensive tests for all code paths

Author: BYK

.github/workflows/sentry-release.yml

@@ -61,7 +61,9 @@ jobs:
         run: sentry release finalize "sentry/${VERSION}"
 
       - name: Create deploy
-        run: sentry release deploy "sentry/${VERSION}" production
+        run: >-
+          sentry release deploy "sentry/${VERSION}" production
+          --url "https://github.com/${{ github.repository }}/releases/tag/${VERSION}"
 
       - name: File issue on failure
         if: failure()

docs/src/content/docs/agent-guidance.md

@@ -93,6 +93,31 @@ sentry schema issues
 sentry schema "GET /api/0/organizations/{organization_id_or_slug}/issues/"
 ```
 
+### Manage Releases
+
+```bash
+# Create a release — version must match Sentry.init({ release }) exactly
+sentry release create my-org/1.0.0 --project my-project
+
+# Associate commits via repository integration (needs local git checkout)
+sentry release set-commits my-org/1.0.0 --auto
+
+# Or read commits from local git history (no integration needed)
+sentry release set-commits my-org/1.0.0 --local
+
+# Mark the release as finalized
+sentry release finalize my-org/1.0.0
+
+# Record a production deploy
+sentry release deploy my-org/1.0.0 production
+```
+
+**Key details:**
+- The positional is `<org-slug>/<version>`. In `sentry release create sentry/1.0.0`, `sentry` is the org and `1.0.0` is the version — the slash separates org from version, it is not part of the version string.
+- The **version** must match the `release` value in `Sentry.init()`. If your SDK uses `"1.0.0"`, the command must use `org/1.0.0`.
+- `--auto` requires a Sentry repository integration (GitHub/GitLab/Bitbucket) **and** a local git checkout. It matches your `origin` remote against Sentry's repo list. Without a checkout, use `--local`.
+- With no flag, `set-commits` tries `--auto` first and falls back to `--local` on failure.
+
 ### Arbitrary API Access
 
 ```bash
@@ -183,38 +208,6 @@ sentry span list my-org/my-project/abc123def456...
 
 When querying the Events API (directly or via `sentry api`), valid dataset values are: `spans`, `transactions`, `logs`, `errors`, `discover`.
 
-## Release Workflow
-
-The `sentry release` command group manages Sentry releases for tracking deploys and associating commits with errors. A typical CI workflow:
-
-```bash
-# Create a release (version must match Sentry.init() release value)
-sentry release create my-org/1.0.0 --project my-project
-
-# Associate commits via repository integration (requires git checkout)
-sentry release set-commits my-org/1.0.0 --auto
-
-# Mark the release as finalized
-sentry release finalize my-org/1.0.0
-
-# Record a deploy
-sentry release deploy my-org/1.0.0 production
-```
-
-**Key details:**
-
-- The `org/version` positional is `<org-slug>/<version>`, NOT a version prefix. `sentry release create sentry/1.0.0` means org=`sentry`, version=`1.0.0`. This is how org is specified — not via `SENTRY_ORG`.
-- The release **version** (e.g., `1.0.0`) must match the `release` value in your `Sentry.init()` call. If your SDK uses bare semver, the release must be bare semver too.
-- `--auto` requires **both** a Sentry repository integration (GitHub/GitLab/Bitbucket) **and** a local git checkout. It lists repos from the API and matches against your local `origin` remote URL, then sends the HEAD commit SHA. Without a checkout, use `--local` instead.
-- When neither `--auto` nor `--local` is specified, the CLI tries `--auto` first and falls back to `--local` on failure.
-
-### CI/CD Setup Notes
-
-- The `sentry` npm package requires **Node.js >= 22**. CI runners like `ubuntu-latest` ship Node.js 20 — add `actions/setup-node@v6` with `node-version: 22`.
-- If `SENTRY_AUTH_TOKEN` is scoped to a GitHub environment (e.g., `production`), set `environment: production` on the job.
-- A full git checkout (`fetch-depth: 0`) is needed for `--auto` to discover the remote URL and HEAD.
-- `set-commits --auto` has `continue-on-error` in most workflows because it requires a working repository integration. If the integration isn't configured, the step fails but the rest of the release workflow succeeds.
-
 ## Common Mistakes
 
 - **Wrong issue ID format**: Use `PROJECT-123` (short ID), not the numeric ID `123456789`. The short ID includes the project prefix.

docs/src/content/docs/commands/release.md

@@ -190,8 +190,8 @@ sentry release create $(sentry release propose-version)
 sentry release list --json
 sentry release view 1.0.0 --json
 
-# CI/CD: full release workflow with org prefix
-sentry release create my-org/1.0.0 --project my-project --url "https://github.com/org/repo/releases/tag/1.0.0"
+# Full release workflow with explicit org
+sentry release create my-org/1.0.0 --project my-project
 sentry release set-commits my-org/1.0.0 --auto
 sentry release finalize my-org/1.0.0
 sentry release deploy my-org/1.0.0 production
@@ -200,7 +200,6 @@ sentry release deploy my-org/1.0.0 production
 ## Important Notes
 
 - **Version matching**: The release version must match the `release` value in your `Sentry.init()` call. If your SDK uses `"1.0.0"`, create the release as `sentry release create org/1.0.0` (version = `1.0.0`), **not** `sentry release create org/myapp/1.0.0`.
-- **The `org/` prefix is the org slug**: In `sentry release create sentry/1.0.0`, `sentry` is the org slug and `1.0.0` is the version. The `/` separates org from version, it's not part of the version string.
-- **`--auto` needs a git checkout**: The `--auto` flag lists repos from the Sentry API and matches against your local `origin` remote URL. A full checkout (`git fetch-depth: 0`) is needed for `--auto` to work. Without a checkout, use `--local`.
-- **Default mode tries `--auto` first**: When neither `--auto` nor `--local` is specified, the CLI tries auto-discovery first and falls back to local git history if the integration isn't configured.
-- **Node.js >= 22 required**: The `sentry` npm package requires Node.js 22 or later. CI runners like `ubuntu-latest` ship Node.js 20 by default.
+- **The `org/` prefix is the org slug**: In `sentry release create sentry/1.0.0`, `sentry` is the org slug and `1.0.0` is the version. The `/` separates org from version — it is not part of the version string.
+- **`--auto` needs a git checkout**: The `--auto` flag lists repos from the Sentry API and matches against your local `origin` remote URL. Without a local git repo, use `--local` instead.
+- **Default mode tries `--auto` first**: When neither `--auto` nor `--local` is specified, `set-commits` tries auto-discovery first and falls back to local git history if the integration isn't configured.

plugins/sentry-cli/skills/sentry-cli/SKILL.md

@@ -103,6 +103,31 @@ sentry schema issues
 sentry schema "GET /api/0/organizations/{organization_id_or_slug}/issues/"
 ```
 
+#### Manage Releases
+
+```bash
+# Create a release — version must match Sentry.init({ release }) exactly
+sentry release create my-org/1.0.0 --project my-project
+
+# Associate commits via repository integration (needs local git checkout)
+sentry release set-commits my-org/1.0.0 --auto
+
+# Or read commits from local git history (no integration needed)
+sentry release set-commits my-org/1.0.0 --local
+
+# Mark the release as finalized
+sentry release finalize my-org/1.0.0
+
+# Record a production deploy
+sentry release deploy my-org/1.0.0 production
+```
+
+**Key details:**
+- The positional is `<org-slug>/<version>`. In `sentry release create sentry/1.0.0`, `sentry` is the org and `1.0.0` is the version — the slash separates org from version, it is not part of the version string.
+- The **version** must match the `release` value in `Sentry.init()`. If your SDK uses `"1.0.0"`, the command must use `org/1.0.0`.
+- `--auto` requires a Sentry repository integration (GitHub/GitLab/Bitbucket) **and** a local git checkout. It matches your `origin` remote against Sentry's repo list. Without a checkout, use `--local`.
+- With no flag, `set-commits` tries `--auto` first and falls back to `--local` on failure.
+
 #### Arbitrary API Access
 
 ```bash
@@ -193,38 +218,6 @@ sentry span list my-org/my-project/abc123def456...
 
 When querying the Events API (directly or via `sentry api`), valid dataset values are: `spans`, `transactions`, `logs`, `errors`, `discover`.
 
-### Release Workflow
-
-The `sentry release` command group manages Sentry releases for tracking deploys and associating commits with errors. A typical CI workflow:
-
-```bash
-# Create a release (version must match Sentry.init() release value)
-sentry release create my-org/1.0.0 --project my-project
-
-# Associate commits via repository integration (requires git checkout)
-sentry release set-commits my-org/1.0.0 --auto
-
-# Mark the release as finalized
-sentry release finalize my-org/1.0.0
-
-# Record a deploy
-sentry release deploy my-org/1.0.0 production
-```
-
-**Key details:**
-
-- The `org/version` positional is `<org-slug>/<version>`, NOT a version prefix. `sentry release create sentry/1.0.0` means org=`sentry`, version=`1.0.0`. This is how org is specified — not via `SENTRY_ORG`.
-- The release **version** (e.g., `1.0.0`) must match the `release` value in your `Sentry.init()` call. If your SDK uses bare semver, the release must be bare semver too.
-- `--auto` requires **both** a Sentry repository integration (GitHub/GitLab/Bitbucket) **and** a local git checkout. It lists repos from the API and matches against your local `origin` remote URL, then sends the HEAD commit SHA. Without a checkout, use `--local` instead.
-- When neither `--auto` nor `--local` is specified, the CLI tries `--auto` first and falls back to `--local` on failure.
-
-#### CI/CD Setup Notes
-
-- The `sentry` npm package requires **Node.js >= 22**. CI runners like `ubuntu-latest` ship Node.js 20 — add `actions/setup-node@v6` with `node-version: 22`.
-- If `SENTRY_AUTH_TOKEN` is scoped to a GitHub environment (e.g., `production`), set `environment: production` on the job.
-- A full git checkout (`fetch-depth: 0`) is needed for `--auto` to discover the remote URL and HEAD.
-- `set-commits --auto` has `continue-on-error` in most workflows because it requires a working repository integration. If the integration isn't configured, the step fails but the rest of the release workflow succeeds.
-
 ### Common Mistakes
 
 - **Wrong issue ID format**: Use `PROJECT-123` (short ID), not the numeric ID `123456789`. The short ID includes the project prefix.

plugins/sentry-cli/skills/sentry-cli/references/release.md

@@ -121,8 +121,8 @@ sentry release create $(sentry release propose-version)
 sentry release list --json
 sentry release view 1.0.0 --json
 
-# CI/CD: full release workflow with org prefix
-sentry release create my-org/1.0.0 --project my-project --url "https://github.com/org/repo/releases/tag/1.0.0"
+# Full release workflow with explicit org
+sentry release create my-org/1.0.0 --project my-project
 sentry release set-commits my-org/1.0.0 --auto
 sentry release finalize my-org/1.0.0
 sentry release deploy my-org/1.0.0 production

src/lib/api/releases.ts

@@ -271,6 +271,41 @@ export async function createReleaseDeploy(
   return data as unknown as DeployResponse;
 }
 
+/**
+ * Get the last commit SHA from the previous release that has commits.
+ *
+ * Uses the undocumented `/previous-with-commits/` endpoint (same as the
+ * reference sentry-cli) to determine the commit baseline for range-based
+ * commit association. Without this, Sentry can't compute which commits
+ * are new in the current release and reports 0 commits.
+ *
+ * @param orgSlug - Organization slug
+ * @param version - Current release version
+ * @returns Previous release's last commit SHA, or undefined if no previous release
+ */
+async function getPreviousReleaseCommit(
+  orgSlug: string,
+  version: string
+): Promise<string | undefined> {
+  try {
+    const regionUrl = await resolveOrgRegion(orgSlug);
+    const encodedVersion = encodeURIComponent(version);
+    const { data } = await apiRequestToRegion<{
+      lastCommit?: { id: string } | null;
+    }>(
+      regionUrl,
+      `organizations/${orgSlug}/releases/${encodedVersion}/previous-with-commits/`,
+      { method: "GET" }
+    );
+    return data?.lastCommit?.id;
+  } catch {
+    // Not critical — if we can't get the previous commit, we still send
+    // refs without previousCommit. Sentry will try to determine the range
+    // from its own data (may result in 0 commits for first releases).
+    return;
+  }
+}
+
 /**
  * Set commits on a release using auto-discovery mode.
  *
@@ -323,9 +358,16 @@ export async function setCommitsAuto(
     );
     if (match) {
       const headCommit = getHeadCommit(cwd);
-      return setCommitsWithRefs(orgSlug, version, [
-        { repository: match.name, commit: headCommit },
-      ]);
+      const previousCommit = await getPreviousReleaseCommit(orgSlug, version);
+      const ref: {
+        repository: string;
+        commit: string;
+        previousCommit?: string;
+      } = { repository: match.name, commit: headCommit };
+      if (previousCommit) {
+        ref.previousCommit = previousCommit;
+      }
+      return setCommitsWithRefs(orgSlug, version, [ref]);
     }
 
     if (!result.nextCursor) {

test/isolated/set-commits-auto.test.ts

@@ -77,15 +77,15 @@ afterEach(() => {
 });
 
 describe("setCommitsAuto", () => {
-  test("lists repos, discovers HEAD, and sends refs to the API", async () => {
+  test("lists repos, discovers HEAD, fetches previous commit, and sends refs", async () => {
     const withCommits = { ...SAMPLE_RELEASE, commitCount: 5 };
     const requests: { method: string; url: string }[] = [];
 
     globalThis.fetch = mockFetch(async (input, init) => {
       const req = new Request(input!, init);
       requests.push({ method: req.method, url: req.url });
 
-      // First request: list org repositories (SDK uses /repos/ endpoint)
+      // List org repositories (SDK uses /repos/ endpoint)
       if (req.url.includes("/repos/")) {
         expect(req.method).toBe("GET");
         return new Response(JSON.stringify([SAMPLE_REPO]), {
@@ -94,16 +94,32 @@ describe("setCommitsAuto", () => {
         });
       }
 
-      // Second request: PUT refs on the release
+      // Previous release commit lookup
+      if (req.url.includes("/previous-with-commits/")) {
+        expect(req.method).toBe("GET");
+        return new Response(
+          JSON.stringify({
+            lastCommit: { id: "prev000000000000000000000000000000000000" },
+          }),
+          { status: 200, headers: { "Content-Type": "application/json" } }
+        );
+      }
+
+      // PUT refs on the release
       expect(req.method).toBe("PUT");
       expect(req.url).toContain("/releases/1.0.0/");
       const body = (await req.json()) as {
-        refs: Array<{ repository: string; commit: string }>;
+        refs: Array<{
+          repository: string;
+          commit: string;
+          previousCommit?: string;
+        }>;
       };
       expect(body.refs).toEqual([
         {
           repository: "getsentry/cli",
           commit: "abc123def456789012345678901234567890abcd",
+          previousCommit: "prev000000000000000000000000000000000000",
         },
       ]);
       return new Response(JSON.stringify(withCommits), {
@@ -115,7 +131,6 @@ describe("setCommitsAuto", () => {
     const release = await setCommitsAuto("test-org", "1.0.0", "/tmp");
 
     expect(release.commitCount).toBe(5);
-    expect(requests).toHaveLength(2);
   });
 
   test("throws ApiError when org has no repositories", async () => {
@@ -174,6 +189,14 @@ describe("setCommitsAuto", () => {
         });
       }
 
+      // Previous release commit lookup (no previous release)
+      if (req.url.includes("/previous-with-commits/")) {
+        return new Response(JSON.stringify({}), {
+          status: 200,
+          headers: { "Content-Type": "application/json" },
+        });
+      }
+
       // PUT refs on the release
       return new Response(JSON.stringify(withCommits), {
         status: 200,