https://grepboard.com/GrepBoardenhttps://grepboard.com/posts/chatgpt-api-context-length-exceeded-tiktoken/https://grepboard.com/posts/chatgpt-api-context-length-exceeded-tiktoken/Mon, 19 Oct 2026 00:00:00 GMTAI / Prompts / ChatGPTtiktoken counts 73,878 tokens but the API says 249,114. Estimate the full request offline: system, tools, schema, history and reserved output.https://grepboard.com/posts/claude-code-hooks-block-commands/https://grepboard.com/posts/claude-code-hooks-block-commands/Mon, 19 Oct 2026 00:00:00 GMTAI / AutomationInspect each Bash command Claude Code is about to run with a PreToolUse hook, and block rm -rf or force pushes with exit code 2, via a settings file and script.https://grepboard.com/posts/journald-disk-usage-vacuum/https://grepboard.com/posts/journald-disk-usage-vacuum/Mon, 19 Oct 2026 00:00:00 GMTLinux / Ubuntu 24.04 / BasicsCheck how much disk the journal uses, delete old files with vacuum, pin a size limit with a drop-in file, and find the units that fill the journal.https://grepboard.com/posts/claude-api-stop-reason-max-tokens-truncated/https://grepboard.com/posts/claude-api-stop-reason-max-tokens-truncated/Mon, 19 Oct 2026 00:00:00 GMTAI / Prompts / ClaudeIf json.loads fails on a reply cut off mid-string, read stop_reason first. A Python check for max_tokens truncation, and how to raise the limit or continue.https://grepboard.com/posts/ai-seo-robots-txt-ai-crawlers-check/https://grepboard.com/posts/ai-seo-robots-txt-ai-crawlers-check/Mon, 19 Oct 2026 00:00:00 GMTAI / MarketingBlocking GPTBot doesn't block every AI bot. Parse robots.txt with Python and print an allow/block table for training, search and user-request crawlers.https://grepboard.com/posts/claude-code-429-rate-limit-vs-outage/https://grepboard.com/posts/claude-code-429-rate-limit-vs-outage/Mon, 19 Oct 2026 00:00:00 GMTAI / Coding agentsTell a usage limit from a throttle, a key problem or an outage by the exact message: `Request rejected (429)`, `You've hit your session limit` and more.https://grepboard.com/posts/claude-code-settings-local-allow-not-working/https://grepboard.com/posts/claude-code-settings-local-allow-not-working/Mon, 19 Oct 2026 00:00:00 GMTAI / AutomationClaude Code still asks despite a Bash allow rule in settings.local.json. Check loaded files, rule syntax, compound commands and deny precedence via claude -p.https://grepboard.com/posts/claude-code-subagents-not-found/https://grepboard.com/posts/claude-code-subagents-not-found/Mon, 19 Oct 2026 00:00:00 GMTAI / Coding agentsWhen a subagent in .claude/agents is not listed or never delegated to, check the file location, frontmatter, debug log and restart conditions in this order.https://grepboard.com/posts/claude-code-mcp-connection-debug/https://grepboard.com/posts/claude-code-mcp-connection-debug/Mon, 19 Oct 2026 00:00:00 GMTAI / AutomationAdd a one-tool stdio MCP server to Claude Code at project scope and read the symptoms of pending approval, a bad command path, broken .mcp.json and stdout logs.https://grepboard.com/posts/figma-design-to-code-claude-mcp/https://grepboard.com/posts/figma-design-to-code-claude-mcp/Mon, 19 Oct 2026 00:00:00 GMTAI / DesignConnect Figma's official remote MCP server to Claude Code and generate code that reflects design tokens and layout from selected frame links.https://grepboard.com/posts/ai-marketing-ai-crawler-hits-nginx-log/https://grepboard.com/posts/ai-marketing-ai-crawler-hits-nginx-log/Mon, 19 Oct 2026 00:00:00 GMTAI / MarketingCount GPTBot, ClaudeBot and PerplexityBot hits by User-Agent, check robots.txt status, then verify the source IPs against the vendors' published lists.https://grepboard.com/posts/seo-content-brief-prompt/https://grepboard.com/posts/seo-content-brief-prompt/Mon, 19 Oct 2026 00:00:00 GMTAI / MarketingCreate an SEO brief from a query and reader profile. Review the prompt and actual output, check intent, evidence and links, then compare variations.https://grepboard.com/posts/disk-full-find-space/https://grepboard.com/posts/disk-full-find-space/Mon, 19 Oct 2026 00:00:00 GMTLinux / Ubuntu 24.04 / StorageFind the full file system with df, narrow down big files with du and find, then handle space that does not come back after a delete and inode exhaustion.https://grepboard.com/posts/nginx-log-5xx-paths/https://grepboard.com/posts/nginx-log-5xx-paths/Mon, 19 Oct 2026 00:00:00 GMTLogs & troubleshooting / Nginx logsCount server errors per path with awk, merge query strings, and narrow by status code and time window — one-liners for the default combined format.https://grepboard.com/posts/systemd-service-failed-debug/https://grepboard.com/posts/systemd-service-failed-debug/Mon, 19 Oct 2026 00:00:00 GMTLinux / Ubuntu 24.04 / BasicsRead the Active and status lines of systemctl status, check the log from just before the failure, and fix 203/EXEC and "start request repeated too quickly".https://grepboard.com/posts/ubuntu-2404-to-2604-upgrade-calculate-error/https://grepboard.com/posts/ubuntu-2404-to-2604-upgrade-calculate-error/Mon, 19 Oct 2026 00:00:00 GMTLinux / Ubuntu 24.04 / BasicsDiagnose "Could not calculate the upgrade" when moving from Ubuntu 24.04 to 26.04, then clear held packages, broken dependencies and conflicting PPAs.https://grepboard.com/posts/codex-exec-mcp-call-cancelled/https://grepboard.com/posts/codex-exec-mcp-call-cancelled/Mon, 19 Oct 2026 00:00:00 GMTAI / AutomationWhen codex exec cancels MCP tool calls right away, drop the config keys that do nothing, approve per server or tool with approval_mode, and keep the sandbox on.https://grepboard.com/posts/claude-code-mcp-project-scope-approval/https://grepboard.com/posts/claude-code-mcp-project-scope-approval/Mon, 19 Oct 2026 00:00:00 GMTAI / AutomationApprove or reject a .mcp.json server that claude mcp list shows as ⏸ Pending approval, and see where local, project and user scope store servers and which wins.https://grepboard.com/posts/claude-code-github-actions-resource-not-accessible/https://grepboard.com/posts/claude-code-github-actions-resource-not-accessible/Mon, 19 Oct 2026 00:00:00 GMTAI / AutomationWhen Claude Code Action fails with 403 Resource not accessible by integration, check the token type, permissions block, repo defaults, then fork PRs.https://grepboard.com/posts/codex-cli-401-exceeded-retry-limit/https://grepboard.com/posts/codex-cli-401-exceeded-retry-limit/Mon, 19 Oct 2026 00:00:00 GMTAI / Coding agentsWhen Codex CLI reconnects five times and ends in 401 Unauthorized, check which credentials it is using, then log out and sign in again in the right order.