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managing-agent-webhooks

Creates, lists, tests, enables, disables, rotates, inspects, and deletes inbound webhooks for the current Letta Cloud agent. Use when a user asks to set up a webhook, send external events to an agent, test webhook delivery, inspect recent webhook requests, rotate a webhook URL, or remove a webhook.

69

Quality

87%

Does it follow best practices?

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SecuritybySnyk

Low

Low-risk findings worth noting

SKILL.md
Quality
Evals
Security

Quality

Content

70%Weight 40%Scale 1-5

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

The body is fully actionable — every operation ships a complete, executable command with consent and reconciliation gates — and the workflow is clearly sequenced with strong validation for destructive operations. Its weakness is token efficiency: the Safety section buries the decision rules Claude needs under a narration of the helper script's internal redaction and serialization machinery, with key rules repeated across sections.

Suggestions

Trim the Safety section to the decision rules Claude must follow (never print the credential file, ask before public/auth mode, reconcile ambiguous outcomes) and drop the narration of the helper's internal redaction/serialization machinery — the script already guarantees that behavior.

Consolidate the ambiguous-status/reconcile rules, currently stated three to four times across Safety and Errors, into one 'Ambiguous outcomes' subsection so each rule appears once.

Move script-implementation details (1 MiB caps, status allowlists, structural redaction mechanics) to a references/ file linked from a one-line pointer, keeping SKILL.md at the level of what to run and when.

DimensionReasoningScore

Conciseness

The ~95-line Safety section narrates the helper's internal machinery ('recursively redacts their values plus the exact generated key, Basic header, encoded credential, and management token; then redacts structurally before serialization...'), and the ambiguous-status/reconcile rules are restated three to four times across Safety and Errors. This is noticeably verbose with several padded sections. Not 3: it is not one or two spots to tighten — roughly a third of the body is unactionable script-internals Claude cannot act on; not 1: it never explains concepts Claude already knows and is accurate, domain-specific material.

2 / 5

Actionability

Every command (list, create in all three auth modes, test, requests, enable, disable, rotate, delete) has a complete, copy-paste-ready invocation with realistic flags and values, including the stdin pattern for user-supplied keys ('printf '%s' "$WEBHOOK_SECURITY_KEY" | node ... --security-key-stdin'). Fully executable guidance covering the common cases.

5 / 5

Workflow Clarity

A clear six-step Workflow with validation checkpoints ('List current webhooks first to avoid accidental duplicates'; affirmative consent gates before '--confirm') plus explicit error-recovery feedback loops in Errors (reconcile-before-retry for ambiguous creates, list-before-retry for unconfirmed deletes). Validation for the destructive operations is emphatically present, so the ≤3 cap does not apply; this matches the top anchor.

5 / 5

Progressive Disclosure

Sections are well-labeled and the single bundle file is correctly and consistently referenced ('<SKILL_DIR>/scripts/manage-agent-webhooks.mjs', verified to exist), but the inline Safety wall — redaction pipeline details, 1 MiB ingestion caps, status-allowlist mechanics — is script-implementation documentation that belongs in a separate reference file or should be trimmed. Content that should be separate is inline, matching the score-3 anchor. Not 4: the misplaced inlined material is about a third of the body, beyond 'minor organization gaps'.

3 / 5

Total

15

/

20

Passed

Description

100%Weight 40%Scale 1-5

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

An exemplary description: a comprehensive verb list of concrete capabilities paired with an itemized, natural-language trigger clause. It cleanly separates what the skill does from when to invoke it and poses no conflict risk.

DimensionReasoningScore

Specificity

Eight concrete, enumerable actions ('Creates, lists, tests, enables, disables, rotates, inspects, and deletes inbound webhooks') scoped to a named domain — comprehensive coverage matching the top anchor. Not 4: there are no minor gaps in the action list.

5 / 5

Completeness

Explicitly answers both 'what' (the eight enumerated verbs on inbound webhooks for the Letta Cloud agent) and 'when' ('Use when a user asks to set up a webhook, ... or remove a webhook') with concrete trigger phrases — structurally identical to the score-5 anchor example. Not 4: the 'when' clause is not merely present but itemized per operation.

5 / 5

Trigger Term Quality

Every operation has a natural user phrasing ('set up a webhook', 'send external events to an agent', 'test webhook delivery', 'inspect recent webhook requests', 'rotate a webhook URL', 'remove a webhook') with synonym coverage across webhook/URL/delivery/requests. Not 4: no common variation users would say is missing.

5 / 5

Distinctiveness Conflict Risk

Scoped to 'the current Letta Cloud agent' and inbound agent webhooks — a clear niche with distinct triggers and minimal overlap risk with generic webhook or file-management skills.

5 / 5

Total

20

/

20

Passed

Validation

100%

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation — 16 / 16 Passed

Validation for skill structure

No warnings or errors.

Repository

letta-ai/letta-code

Path

src/skills/builtin/managing-agent-webhooks/SKILL.md

Reviewed

Table of Contents

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