Writes a single ledger row for the most recent tool-use call: reads the API response's usage field (authoritative), looks up the model rate in shared/rate-card.json, applies prompt-cache modifiers (1.25× write, 0.1× read), computes billed cost, and appends to plugins/cost-tracker/state/ledger-YYYY-MM.jsonl. Use when: a PostToolUse hook fires for any tool and attribution metadata is available via ENCHANTED_ATTRIBUTION env. Do not use for forecasting (see /pech-forecast → forecast-cost) or for anomaly detection (see budget-watcher/detect-anomaly).
This listing is imported from SkillsMP metadata and should be treated as untrusted until upstream source review is completed.
Install skill "observe-call" with this command: npx skills add enchanter-ai/skillsmp-enchanter-ai-enchanter-ai-observe-call
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Related by shared tags or category signals.
Runs L2 Budget Boundary Detection after each ledger write: increments per-scope counters, compares against ceilings in state/budgets.json, emits pech.budget.threshold.crossed on first crossing of each threshold within each scope-window. Use when: a PostToolUse hook fires and cost-tracker has already written the ledger row. Do not use for forecasting (see forecast-cost) or anomaly detection (see detect-anomaly).
OPT-IN BLOCKING token-bucket rate limiter. Pairs with pech-rate-limiter (advisory). When state/rate-policy.json sets enabled:true, this shield blocks (exits 2) any tool call once the active (session, skill) bucket is empty. Reads buckets from rate-limiter's state/buckets.json when present; gracefully degrades when absent. Use when the developer asks why a tool call was rate-blocked, wants to enable or tune the rate policy, or reviews a stderr "rate-shield (BLOCKED)" message. Default disabled. Do not use for advisory-only velocity signals (see rate-limiter) or for cost reporting (see budget-watcher).
OPT-IN BLOCKING capability allowlist. Pairs with hydra-capability-fence (advisory). When state/capability-policy.json sets enabled:true, this shield blocks any tool call whose name is not in the active SKILL.md frontmatter allowed-tools list. Use when the developer asks why a tool call was blocked, wants to enable or tune the capability allowlist, or reviews a stderr "capability-shield (BLOCKED)" message. Default disabled — out of the box this shield does nothing. Do not use for observability without enforcement (see capability-fence).
OPT-IN BLOCKING egress allowlist. Pairs with hydra-egress-monitor (advisory). When state/egress-policy.json sets enabled:true, this shield blocks any WebFetch / WebSearch / Bash-network call whose destination host is not in the operator-curated allowlist. Use when the developer asks why a network call was blocked, wants to inspect or edit the egress allowlist, or asks about audit.ndjson policy_blocked events. Default disabled — out of the box this shield does nothing. Do not use for observability without enforcement (see egress-monitor).