npx skills add ...
npx skills add forcedotcom/sf-skills --skill platform-datamask-run
Data Mask end-to-end operation on a sandbox: configure a masking policy over PII, run the masking job, poll it to completion, report masked-record results, and abort an in-progress run. Use when the user needs to run, monitor, or cancel a Salesforce Data Mask job, mask PII/sandbox data, or work with DataMaskPolicy / DataMaskPolicyJobRun. TRIGGER when: user runs a data mask job, masks sandbox PII, polls masking status, reports masked records, or aborts a running mask. DO NOT TRIGGER when: writing anonymization Apex by hand (use platform-apex-generate), generating test data (use platform-data-manage), or deploying unrelated metadata (use platform-metadata-deploy).
npx skills add forcedotcom/sf-skills --skill platform-datamask-run
Use this skill to operate the Salesforce Data Mask feature on a sandbox: configure a masking policy over PII fields, start a masking job, poll it to a terminal state, report which records were masked, and abort a run that is still in progress.
Data Mask is sandbox-only — the run/abort REST endpoints return 403 on production (a runtime
sandbox guard). Confirm the target org is a sandbox before starting.
Delegate elsewhere when the user is:
platform-apex-generateplatform-data-manageplatform-metadata-deployThe single biggest failure mode is assuming Data Mask entities are ordinary data-API objects. They are not, and the surface differs per entity. Memorize this table before running anything — guessing here is what turns a 3-second job into a 30-minute dead end.
| Entity | What it is | How you reach it |
|---|---|---|
DataMaskPolicy | The masking policy shell (config) | Tooling API or Metadata API (thin shell: <label>/<description>/<runOnRefresh> only) — NOT standard SOQL/sobject describe |
DataMaskPolicyObject | An object targeted by a policy (holds the optional row filter) | Tooling API only — query AND insert; row-subset "sample" runs set FilterEnabled+WhereCriteria here (no sampleSize on the policy) |
DataMaskPolicyField | A field + its masking treatment | Tooling API only — query AND insert; treatment cols are MaskingCategory + MaskValue |
DataMaskPolicyJobRun | The job (one masking run) | Standard SOQL — sf data query works |
DataMaskPolicyJobRunDtl | Per-object job detail (child, FK DataMaskPolicyJobRunId) | Standard SOQL |
| Start a run | — | REST run API POST /services/data/v67.0/platform/data-resilience/data-mask/policies/{policyId}/run |
| Abort a run | — | REST run API POST /services/data/v67.0/platform/data-resilience/data-mask/jobs/{jobRunId}/abort |
Concretely:
sf sobject describe --sobject DataMaskPolicy → NOT_FOUND (don't retry it against standard API)SELECT ... FROM DataMaskPolicy via sf data query → INVALID_TYPEsf data query --use-tooling-api --query "SELECT Id, MasterLabel FROM DataMaskPolicy"sf data query --query "SELECT Id, Status FROM DataMaskPolicyJobRun"Full command reference: references/api-surface.md.
This skill has two distinct workflows. Select ONE up front from what the user asked for, then run every step of that workflow — neither has optional steps:
| The user wants to… | Run | Ends when |
|---|---|---|
| Configure/edit a policy and mask records; report how many were masked | Workflow A — Mask & report (below) | The masked count is reported from the detail rows |
| Cancel / abort a masking run | Workflow B — Cancel a run (further below) | The job's status is confirmed canceled |
Choose by the verb in the request. "Create/edit a policy and run it", "mask the PII", "how many records were masked" → Workflow A only. "Abort", "cancel", "stop the run" → Workflow B. A mask-and-report request does not include an abort: do not start a second job to "demonstrate" cancelling — an unrequested run wastes a full ~5–10 min job (see the pool floor in A4) and is the top cause of this task running out of turn before it finishes the masked count it was asked for.
Verify the org is a sandbox and grab the instance URL + a session token for the run-API calls:
Prefer reusing an existing policy (fastest, no deploy):
If none targets the Contact PII you need, author one with the two-step recipe (the
DataMaskPolicy Metadata shape is a thin shell; membership is Tooling-inserted):
--metadata-dir + package.xml; a
source-format --source-dir deploy fails "Could not infer a metadata type"). The shell carries
only <label>, <description>, <runOnRefresh>. This creates the policy with an active
revision, which A2 requires.DataMaskPolicyObject (one per object) then its DataMaskPolicyField
rows. Each field row's treatment is MaskingCategory (library) + MaskValue (a snake_case
token like first_name, email, phone). There is no MaskingRuleType column.Insert order matters: a Tooling-created parent (no active revision) makes the child insert fail
INSUFFICIENT_ACCESS_ON_CROSS_REFERENCE_ENTITY. Metadata-deploy the shell first.
See references/policy-authoring.md for the full recipe and the MaskValue token table. Choose a
MaskValue appropriate to each field; do not blanket-replace.
The endpoint needs an empty JSON body ({}) — sf api request rest requires --body on a POST
even when the API takes no payload. Pass the file with an @ prefix (--body @./empty-body.json);
without it the literal path is sent as the body and the API returns JSON_PARSER_ERROR. A 200 returns jobRunId, policyId, status (the run-API
status is UPPERCASE, e.g. RUNNING) and message: "Job started successfully". A 409/CONFLICT
means a run is already in progress for that policy.
Write
report.mdNOW, before you poll — do not wait until the end. The masking job takes several minutes (see below), and the single most common way this task scores zero is the turn ending during the poll with no output file written at all. The instant you have thejobRunId, writereport.mdwith everything known so far (policy Id/label, the run command, thejobRunId, statusRUNNING, and a "polling for completion…" placeholder for the masked count). Then update that same file once the job finishes. A report that exists and says "still running" beats no file; a fabricated count is worse than either — only fill the count from the detail rows (A5).
Poll DataMaskPolicyJobRun.Status until it reaches a terminal value. Do not report a
mid-run status as final.
pending, scheduled — the job is queued but not yet abortablerunning — this is the only state in which abort succeedscompleted, completed_with_errors, failedcanceled (single "l")pending is not running. Abort on a pending/scheduled job returns 409 CONFLICT
("Job is not in a running state ... status=PENDING"). You must poll until the status is literally
running before you can abort — see Workflow B.
Jobs are slow — expect several minutes, and poll with the bundled script. Data Mask runs on a backend pool/scheduler with a ~5–10 minute floor: even a tiny (20-row) job usually does not reach a terminal state or emit detail rows for several minutes after the run starts. This is fixed overhead, not proportional to row count. Plan the run around it — the single biggest failure mode is treating the job as instant, polling on a tight interval, and either timing out or writing a "still pending" report.
Run scripts/poll-job.sh as a single command — do not hand-roll a SOQL poll loop:
It sleeps on a low-frequency interval, short-circuits the instant a ground-truth detail row appears,
prints the terminal signal (completed/failed/canceled) on stdout, and exits 0 (or 1 on
timeout). Call it once and read its result — do not wrap it in your own retry loop, and do not
poll on a sub-10s interval (it just burns tool calls against a job that cannot finish sooner).
Ground truth is the detail rows, not the parent status. The parent DataMaskPolicyJobRun.Status
can lag — it may read pending/running for a while after masking actually finished. Once a
total_records_masked (or completed) DataMaskPolicyJobRunDtl row exists, the masking is done.
poll-job.sh already encodes all of this — the bounded interval and timeout, the short-circuit on
the ground-truth detail row, and the terminal-signal exit code — so you do not re-implement any
of it inline. Run the poller once, read its exit signal, then update report.md (the stub you wrote
before polling) with the terminal status and the masked count from A5.
The parent job carries an overall status; per-object masked counts live on the child
DataMaskPolicyJobRunDtl (linked by DataMaskPolicyJobRunId). Report a concrete count, not a
fabricated one:
Report only what the rows literally show — do not overstate granularity. The detail rows are
object-level status_update entries (loaded, completed, total_records_masked for the object,
e.g. Contact). They are not per-field rows. So state per-object success as an observed fact
("Contact: 27/27 records masked, 0 error rows"), but frame field-level success as an inference,
not a direct observation — say "no field-level error rows were returned, so no field is reported as
failed", not "all 5 fields succeeded" (the data does not carry a per-field success row to back
that claim). Overstating an inference as an observation is the most common factuality miss here.
Use this workflow when the request is to abort/cancel a masking run. It targets the run that is currently in progress — aborting is an on-demand action against a live job; nobody starts a job just to cancel it. Steps B1–B4 are all required.
Confirm the org is a sandbox (sf org display) and get the jobRunId of the run to abort — the one
the user is asking to cancel. Capture its DataMaskPolicyId too — you need it to start a
replacement run if the abort window is missed (B2 exit 3 / exit 1). If they just started it, use that
id; otherwise query for the active run:
Note the DataMaskPolicyId (8dm prefix) of the run you pick — that is the <policyId> A3 needs.
running (the only abortable state)You can only abort while DataMaskPolicyJobRun.Status is running. A pending/scheduled job
409s; a terminal one is already done. Poll for the running window with the bundled poller in its
running mode — it exits the instant the status reads running (unlike the default mode, which
waits for a terminal state), so it will not block past the abortable window:
The cap is 900s (15 min), above the ~5–10 min scheduling floor so a slow-to-start job still gets caught. Handle every exit:
0 (prints running) → go straight to B3.3 → the job raced to a terminal state before running was caught; the abort window is
gone. Start a fresh run against the policy you captured in B1 (A3 with that <policyId>), then
return here and poll the new jobRunId.1 (timeout — the cap expired) → re-query the job's status:
pending/scheduled/running), re-run the poller once more (same
command) to continue waiting. If it is running, go to B3. If it is terminal, treat it like exit 3
— start a fresh run (A3 with the B1 <policyId>) and poll the new job.Because of the ~5–10 min pool floor the running window is usually minutes wide, so there is time to
catch it; do not poll with no delay.
If no run is currently in progress (the job already completed, or you must reproduce a run→cancel flow end to end), start one first with A3, then return here — poll it to
runningand abort that live job. Never substitute an older, already-terminal job to "show" a cancel; the abort must target the run that is actually live.
Abort via the run API — not by DML/delete on the job record:
Empty JSON body ({}) via the @-prefixed file, as above. A 200 returns status: "CANCELED"
(uppercase, from the run API) and message: "Job abort requested". A 409 means the job was not in
a running state (usually still pending/scheduled) — return to B2 and resume polling.
Cancellation is asynchronous. Re-query DataMaskPolicyJobRun and confirm Status = canceled
(lowercase, from SOQL) before reporting the abort succeeded. Verify:
running.DataMaskPolicyJobRun after the abort and saw Status = canceled.| Rule | Rationale |
|---|---|
Run each sf command bare — never add a pipe or redirect of any kind (|, | python3, | grep, 2>&1, 2>/dev/null, > file) | sf ... --json already prints clean JSON on stdout; read it directly. A redirect/pipe trips an unbypassable shell-safety guard that silently stalls the whole run to timeout. Never post-process with python3/grep/jq, and never suppress stderr — even if a command prints a warning, the --json payload on stdout is still valid; just parse it as-is |
Never use standard SOQL / sobject describe on DataMaskPolicy* config objects | They return INVALID_TYPE / NOT_FOUND — use Tooling API or MDAPI |
Read masked counts from DataMaskPolicyJobRunDtl, never invent them | The child detail is the source of truth for per-object results |
Only completed / completed_with_errors / failed are terminal | Reporting running/scheduled as final is wrong |
| Abort only via the run-API abort endpoint | DML/delete on the job record is not a real abort and corrupts state |
Always re-query status after abort and confirm canceled | An abort call returning 200 is not proof the job stopped |
| Data Mask runs on sandboxes only | Run/abort endpoints 403 on production |
Use API version v67.0 or later, and no /connect/ segment | The run/abort endpoints are /services/data/v67.0/platform/data-resilience/data-mask/... — a connect segment or a pre-v67 version returns NOT_FOUND |
Poll via scripts/poll-job.sh (one call), never a hand-rolled SOQL loop | The script caps attempts and short-circuits on the ground-truth detail row; a manual loop against the lagging parent status is the #1 cause of a run timing out with no report |
| Issue | Resolution |
|---|---|
sf sobject describe DataMaskPolicy → NOT_FOUND | It's a Tooling/MDAPI entity — query with --use-tooling-api, don't retry standard API |
SELECT ... FROM DataMaskPolicy → INVALID_TYPE | Same cause — use Tooling API for the policy; standard API only for DataMaskPolicyJobRun/Dtl |
Run start returns 409 | A run is already in progress for that policy — poll the existing one or wait for it to finish |
Abort returns 409 "status=PENDING" | The job is still pending/scheduled, not yet running — keep polling and abort only once it reads running; don't give up on the abort |
| Small job finishes before you can abort it | The running window is seconds on a small sandbox — start a fresh run and poll tightly; never substitute a previously-aborted job to fake the flow |
Abort returns 200 but SOQL status still running | Cancellation is async — keep polling the SOQL status until canceled; don't report success early |
Run API says CANCELED but SOQL says running | Case + surface differ: the run API is UPPERCASE, SOQL picklist is lowercase. Trust the SOQL value for terminal state |
| Job "finished" instantly | Re-check: scheduled is not terminal. Poll until a terminal value actually appears |
Run/abort endpoint NOT_FOUND | The path must be /services/data/v67.0/platform/data-resilience/data-mask/... — no /connect/ segment, and version v67.0+ (Core 262). See references/api-surface.md |
Report the sections for the workflow you ran — do not add sections for the other one. Keep it tight — show each command once, at the step it belongs to; do not append a second "full command log" that repeats calls already shown. Prefer a compact table over prose; a reader should reach the key result in the first screenful.
Workflow A (mask & report):
running→completed"); do not print a row per poll.DataMaskPolicyJobRunDtl. Report the object-level counts the rows
actually carry; if there are no field-level error rows, say so as an inference ("no field-level
errors reported"), not as a claimed per-field success. See A5 for the exact phrasing.Workflow B (cancel a run):
running when aborted, that the abort was issued via
the run-API abort endpoint, and the re-queried canceled status.Accuracy notes that keep factuality high:
jobRunId (e.g. 1aGXK0000000uob); SOQL
returns the 18-character form of the same record (e.g. 1aGXK0000000uob2AA). They are the
same job — when both appear, note that rather than presenting them as two IDs.| Need | Delegate to | Reason |
|---|---|---|
| Seed realistic PII records to mask | platform-data-manage | Test-data creation |
| Author custom anonymization Apex | platform-apex-generate | Apex authoring |
| Deploy the policy metadata to the org | platform-metadata-deploy | Metadata deployment |
| File | When to read |
|---|---|
references/api-surface.md | Exact per-entity API surface, all CLI commands, run/abort REST endpoints, and status picklist values |
references/policy-authoring.md | Two-step authoring recipe (MDAPI thin shell → Tooling object/field inserts) and the MaskingCategory/MaskValue treatment table |
references/run-and-abort.md | The run → poll → report → re-run → abort sequence in full, with sample responses |
scripts/poll-job.sh | Bounded poller: waits for a terminal status (default) or, with POLL_MODE=running, for the abortable running window |