docs(creating-cloud-persona): scope is a boot cost, not just a permission - #95
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…sion
The skill's prose already said to prefer concrete subpaths, but its example
handed authors `slack: { scope: { channels: '/slack/channels/**' } }` — and the
example is what gets copied. Every agent in the watchdog fleet carries that
line.
It is not merely broad. The mount is traversed when the sandbox starts, so its
size is paid on every run, and `/slack/channels/**` measured ~5,950 entries
(2,008 files, 3,940 directories) in a real workspace. Runs came up degraded
("scoped initial sync failed; continuing without preloaded reads") and then
failed outright with exit 124 once cloud began cancelling non-converging mounts
at the hard deadline. Narrowing to the one channel the agent posts to took the
same bootstrap to a clean 127s.
Rewrites the example to hoist the channel id to a constant and scope that single
channel, and adds the two things that were nowhere in the doc:
- A write needs the *grant*, not the mirror. That agent kept posting fine in the
degraded runs where the sync never completed; mirroring 6,000 entries to send
one message was pure cost.
- `scope` does NOT interpolate inputs, though trigger `paths` DO — an asymmetry
the doc demonstrated on the trigger side without ever saying it does not hold
for scope. Hence the constant, plus a test asserting scope and input agree.
The two remaining broad examples are left broad, because both are agents that
answer mentions anywhere and legitimately need the collection — but each now
says why, so neither reads as the default. Also notes that `deploy` warns on
these via `lintScopes()`.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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📝 WalkthroughWalkthroughThe guide replaces a broad Slack channel example with a targeted channel scope. It documents mount traversal costs, write grants, scope value behavior, input consistency, lint warnings, and appropriate broad-scope use. ChangesSlack scope documentation
Estimated code review effort: 1 (Trivial) | ~5 minutes Merge Risk: 🟡 Moderate · up to The documentation may lead authors to treat failed mount bootstrap as safe for writes, even though writeback can fail or return an empty receipt when the write path is unavailable. Merge should wait for this wording to distinguish degraded reads from healthy writeback. Poem
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| same `${…}` in `scope` is not substituted. Hoist the id to a module constant | ||
| used by both the scope and the input `default` (as above) and assert in a test | ||
| that they agree — otherwise overriding the input at deploy time silently points | ||
| the agent at a channel it has no write grant for. |
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When SLACK_CHANNEL is overridden through --input or the environment, the trigger path uses the resolved value while the scope remains fixed to the module constant. A test comparing the scope with the input default still passes, yet writes to the overridden channel have no grant and silently no-op. The guidance should either make the channel non-overridable, validate the resolved value against the constant, or grant all supported channel paths.
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| `deploy` runs `lintScopes()` over these globs and warns (non-fatally) on the | ||
| history-sized collections above, on provider-root mirrors, and on globs the mount | ||
| would reject outright. Warnings are advice, not a gate: if the agent genuinely |
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The repository-wide search finds no lintScopes implementation or call outside this new prose, and the declared current deploy reference at references/workforce/packages/deploy/src/preflight.ts:99-102 builds warnings solely from lintTriggers(normalizedAgent). Consequently, users of the self-contained vendored version receive none of the promised warnings for history-sized, provider-root, or rejected globs; update the vendored deploy/persona-kit references or qualify the Workforce version in which this protection exists.
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Actionable comments posted: 1
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Inline comments:
In `@skills/creating-cloud-persona/SKILL.md`:
- Around line 274-277: Clarify the write-scope guidance in the section
containing “A write does not need the mirror” to distinguish a degraded read
mirror from writeback availability: writes may proceed without a complete read
sync, but still require a healthy mounted writeback path and must not treat
failed mount bootstrap as safe. Keep the existing advice to scope writes to only
the required path.
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skills/creating-cloud-persona/SKILL.md
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All reported issues were addressed across 1 file
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Re-trigger cubic
Review caught both. "A write does not need the mirror — only the grant" is too strong, and §1 of this same skill says why: when the mirror is stuck rather than merely un-preloaded, the writeback cannot be acknowledged either — `ts: ''`, and the run is marked FAILED on the teardown flush. What was actually observed is narrower: the agent kept posting through runs that logged `scoped initial sync failed; continuing without preloaded reads`, where the mount was up and only the preload had been skipped. Reworded to say that, and to point out that the narrow scope fixes both cases because it is cheap enough to converge — which is the actual advice. Also drops the present tense on `lintScopes()`, which is not released yet (AgentWorkforce/workforce#311). Promising a warning that no vendored deploy emits would leave authors trusting a gate that isn't there. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
The previous revision told authors to hoist the channel id into a constant and use it in `scope`. That works, but it is the worse of the two fixes and this skill should not be steering people to it: pinning an id takes the channel choice away from whoever deploys, and overriding the input then points the agent at a channel it has no write grant for. Cloud already supports the right answer. `persona-deploy.ts` (`pickerTargetPath`) rewrites a picker-gated collection scope down to the single record the deploy input resolves to, for reads and writebacks alike — so `/slack/channels/**` becomes `/slack/channels/<id>/**` while the operator keeps choosing the channel. Found while fixing the watchdog fleet: all eight personas already carried the `picker` and none carried `enabledByInput`, so the rewrite never fired and every deploy mirrored the whole channel tree. The failure mode is silent and the four requirements are easy to half-satisfy, so they are now listed explicitly, along with the note that missing any one falls back to mirroring everything. The constant remains documented as the fallback for an agent whose channel really is fixed rather than operator-chosen. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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1 issue found across 1 file (changes from recent commits).
Prompt for AI agents (unresolved issues)
Check if these issues are valid — if so, understand the root cause of each and fix them. If appropriate, use sub-agents to investigate and fix each issue separately.
<file name="skills/creating-cloud-persona/SKILL.md">
<violation number="1" location="skills/creating-cloud-persona/SKILL.md:304">
P3: The new §3 rule says any integration with optional:true + enabledByInput + a matching picker + a bare collection scope is rewritten by cloud to a single record. The §3b dual-transport example's Slack integration matches all four conditions exactly, yet its comment claims 'Broad here only because this agent replies wherever it is mentioned.' Per the new rule, that example would silently narrow to one channel and stop receiving mentions elsewhere. Clarify §3b (drop the picker or the broad-scope justification) so the two sections do not contradict each other.</violation>
</file>
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| channel and takes the choice away from whoever deploys; override the input and | ||
| the agent silently writes to a channel it has no grant for. Use the gate above | ||
| instead: cloud's `pickerTargetPath` (in `persona-deploy.ts`) rewrites a | ||
| picker-gated collection scope to the single record the input resolves to, for |
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P3: The new §3 rule says any integration with optional:true + enabledByInput + a matching picker + a bare collection scope is rewritten by cloud to a single record. The §3b dual-transport example's Slack integration matches all four conditions exactly, yet its comment claims 'Broad here only because this agent replies wherever it is mentioned.' Per the new rule, that example would silently narrow to one channel and stop receiving mentions elsewhere. Clarify §3b (drop the picker or the broad-scope justification) so the two sections do not contradict each other.
Prompt for AI agents
Check if this issue is valid — if so, understand the root cause and fix it. At skills/creating-cloud-persona/SKILL.md, line 304:
<comment>The new §3 rule says any integration with optional:true + enabledByInput + a matching picker + a bare collection scope is rewritten by cloud to a single record. The §3b dual-transport example's Slack integration matches all four conditions exactly, yet its comment claims 'Broad here only because this agent replies wherever it is mentioned.' Per the new rule, that example would silently narrow to one channel and stop receiving mentions elsewhere. Clarify §3b (drop the picker or the broad-scope justification) so the two sections do not contradict each other.</comment>
<file context>
@@ -284,14 +294,33 @@ Two corollaries worth internalizing:
+ channel and takes the choice away from whoever deploys; override the input and
+ the agent silently writes to a channel it has no grant for. Use the gate above
+ instead: cloud's `pickerTargetPath` (in `persona-deploy.ts`) rewrites a
+ picker-gated collection scope to the single record the input resolves to, for
+ reads and writebacks alike. Requirements, all four:
+
</file context>
1 participant
Why
The skill's prose already told authors to prefer concrete subpaths. Its example handed them this:
The example is what gets copied. Every agent in the watchdog fleet carries that line — 8 of 9 personas.
And it is not merely "broad". The mount is traversed when the sandbox starts, so its size is paid on every run.
/slack/channels/**measured ~5,950 entries (2,008 files, 3,940 directories) in a real workspace. Runs came up degraded (scoped initial sync failed; continuing without preloaded reads), then failed outright with exit 124 once cloud began cancelling non-converging mounts at the hard deadline. Narrowing to the one channel the agent posts to took the same bootstrap to a clean 127s.What changed
The main example now hoists the channel id to a constant and scopes that single channel, followed by a short section covering the two things that were nowhere in the doc:
scopedoes NOT interpolate inputs, though triggerpathsDO. The doc demonstratedpaths: ['/slack/channels/${SLACK_CHANNEL}/**']on the trigger side without ever saying the substitution does not happen inscope. Hence the shared constant, plus a test asserting scope and input agree — otherwise overriding the input at deploy silently points the agent at a channel it has no write grant for.The two remaining broad examples stay broad: both are agents that answer mentions anywhere and legitimately need the collection. Each now says why, so neither reads as the default.
Also notes that
deploywarns on these vialintScopes()— AgentWorkforce/workforce#311, which enforces the same lesson mechanically.🤖 Generated with Claude Code