Answer the research question "does a keep-alive ping that itself gets 429'd still refresh the prompt-cache TTL on Anthropic's side?" from captured turn-logs. A 429'd ping has no usage body, so its effect is only visible through the NEXT successful request on the same SESSION KEY. Runs .skills/ttl-429/scripts/ttl429.mjs over one or more instance..ndjson turn-logs and classifies every 429'd ping as REFRESH (warm probe across the TTL boundary, no masking 200), NO-REFRESH (cold probe), or INCONCLUSIVE (boundary not crossed, or a success refreshed it first). Also prints per-session ping warmth, which flags PHANTOM keep-alive loops (a session whose every ping reads cold — an uncacheable aux context that should never have been armed). Pass --ttl-sec 3600 for an arm running --inject-extended-cache-ttl; default 300s is Anthropic's stock cache TTL. Read-only post-hoc analysis; spends no tokens.
Install with
Claude CodeCodexCursorGitHub CopilotGemini CLI
Supported by the Atlas install prompt. Skill-specific requirements vary.
Skill stats
Skills1CategoryScience & researchStars0
About this skill
Answer the research question "does a keep-alive ping that itself gets 429'd still refresh the prompt-cache TTL on Anthropic's side?" from captured turn-logs. A 429'd ping has no usage body, so its effect is only visible through the NEXT successful request on the same SESSION KEY. Runs .skills/ttl-429/scripts/ttl429.mjs over one or more instance..ndjson turn-logs and classifies every 429'd ping as REFRESH (warm probe across the TTL boundary, no masking 200), NO-REFRESH (cold probe), or INCONCLUSIVE (boundary not crossed, or a success refreshed it first). Also prints per-session ping warmth, which flags PHANTOM keep-alive loops (a session whose every ping reads cold — an uncacheable aux context that should never have been armed). Pass --ttl-sec 3600 for an arm running --inject-extended-cache-ttl; default 300s is Anthropic's stock cache TTL. Read-only post-hoc analysis; spends no tokens.
Quick start
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Answer the research question "does a keep-alive ping that itself gets 429'd still refresh the prompt-cache TTL on Anthropic's side?" from captured turn-logs. A 429'd ping has no usage body, so its effect is only visible through the NEXT successful request on the same SESSION KEY. Runs .skills/ttl-429/scripts/ttl_429.mjs over one or more instance.*.ndjson turn-logs and classifies every 429'd ping as REFRESH (warm probe across the TTL boundary, no masking 200), NO-REFRESH (cold probe), or INCONCLUSIVE (boundary not crossed, or a success refreshed it first). Also prints per-session ping warmth, which flags PHANTOM keep-alive loops (a session whose every ping reads cold — an uncacheable aux context that should never have been armed). Pass --ttl-sec 3600 for an arm running --inject-extended-cache-ttl; default 300s is Anthropic's stock cache TTL. Read-only post-hoc analysis; spends no tokens.
About this listing
Category
Science & research
Reported license
Not specified
Listing language (estimated)
English
Review status
Not individually reviewed
Agent compatibility
Atlas installation supports Claude Code, Codex, and Cursor. Skill-specific dependencies and features are checked during setup.
Claude Code
Codex
Cursor
GitHub Copilot
Gemini CLI