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# IndieSeek

> Free tools, practical blogs, and useful apps for building, launching, and improving products.

## Apps

- [MD+HTML Reader](https://indieseek.co/apps/md-html-reader/): Local-first Markdown HTML reader for Mac, built for reviewing AI-generated Markdown and HTML from project folders.
- [Paste Switch](https://indieseek.co/apps/paste-switch/): Focused Mac clipboard switcher for replacing recent text and image clips with one repeated shortcut.

## Tools

- [Free online tools](https://indieseek.co/tools/): Browser-based tools for product launch checklists, tracking links, and SEO starter files.
- [Meta Tag Checker | SEO Tags and Search Preview | IndieSeek](https://indieseek.co/tools/meta-tag-checker/): Check title, meta description, canonical URL, robots, viewport, and Google-style search preview for a public page.
- [OG Image Checker | Social Preview Tool | IndieSeek](https://indieseek.co/tools/og-image-checker/): Check Open Graph and Twitter image tags, declared image size, alt text, and a simple social share preview for a public page.
- [Launch UTM Builder | IndieSeek](https://indieseek.co/tools/utm-builder/): Build clean UTM campaign URLs for Product Hunt, X, Reddit, Hacker News, Indie Hackers, newsletters, and directories.

## Blogs

- [AGENTS.md vs CLAUDE.md vs Copilot instructions: a practical setup guide for AI coding agents.](https://indieseek.co/blogs/agents-md-vs-claude-md-copilot-instructions/): A practical setup guide for AI coding-agent instructions: when to use AGENTS.md, CLAUDE.md, GitHub Copilot custom instructions, Cursor Rules, scripts, hooks, and checks.
- [How to sandbox an AI coding agent before opening an untrusted repo.](https://indieseek.co/blogs/ai-coding-agent-sandbox-untrusted-repo-checklist/): A practical zero-trust checklist for using AI coding agents with untrusted GitHub repos: scan first, isolate secrets, restrict network, review scripts, and verify changes before running setup.
- [AI search SEO checklist for indie sites: what Google's 2026 guide actually changes.](https://indieseek.co/blogs/ai-search-seo-checklist-for-indie-sites/): A practical AI search SEO checklist for indie sites based on Google's 2026 guidance: content quality, crawlability, llms.txt, AI Overviews, and publish gates.
- [Anthropic Python SDK 1.0: migrate HTTP, raw responses, and compaction without blind spots.](https://indieseek.co/blogs/anthropic-python-sdk-1-httpx2-migration-checklist/): Migrate Anthropic Python SDK 1.0 to httpx2, repair raw responses and compaction, and verify tracing, mocks, Bedrock region, and rollback.
- [Antigravity Agent 09-2026: migrate local tool schemas before October 5](https://indieseek.co/blogs/antigravity-agent-09-2026-local-tool-schema-migration-checklist/): Classify remote and local Antigravity integrations, map the 09-2026 tool-schema changes, and run five migration canaries before the old preview shuts down October 5.
- [Building MD+HTML Reader from a personal itch to a public macOS app.](https://indieseek.co/blogs/building-md-html-reader/): A practical build-in-public story about turning MD+HTML Reader into a self-serve macOS app with payment, analytics, updates, SEO, and launch assets.
- [ChatGPT Computer History: use an allowlist before Codex learns from your activity.](https://indieseek.co/blogs/chatgpt-computer-history-privacy-rollout-checklist/): Roll out ChatGPT Computer History on macOS with include-only app and website permissions, pause and deletion canaries, local-memory inspection, and prompt-injection controls.
- [ChatGPT event-triggered scheduled tasks: connect Gmail, Slack, and GitHub without duplicate work.](https://indieseek.co/blogs/chatgpt-event-triggered-scheduled-tasks-gmail-slack-github-checklist/): Roll out ChatGPT event-triggered Scheduled Tasks for Gmail, Slack, and GitHub with narrow filters, dedup keys, permission gates, and eight canaries.
- [ChatGPT stops auto-switching from Instant to Thinking: rebuild your workflow with explicit reasoning](https://indieseek.co/blogs/chatgpt-instant-to-thinking-auto-switch-retirement-checklist/): Replace ChatGPT's retired Instant-to-Thinking auto-switch with explicit task routing, four rollout canaries, and an auditable reasoning receipt.
- [ChatGPT for Linux public preview: verify the browser boundary before rollout.](https://indieseek.co/blogs/chatgpt-linux-desktop-public-preview-browser-boundary-checklist/): Install the official ChatGPT Linux desktop preview safely, verify supported distributions, test built-in browser and Chrome separately, and prove native app control stays unavailable.
- [Chrome DevTools MCP 1.7: debug memory leaks without reading raw heap snapshots.](https://indieseek.co/blogs/chrome-devtools-mcp-1-7-memory-leak-debugging-checklist/): Use Chrome DevTools MCP 1.7 to capture three heap snapshots, compare retained growth, inspect native contexts and object retainers, and close every snapshot safely.
- [Chrome DevTools MCP for AI coding agents: a practical debugging workflow.](https://indieseek.co/blogs/chrome-devtools-mcp-ai-agent-debugging-workflow/): A practical Chrome DevTools MCP workflow for AI coding agents: when to use it, how to debug web apps safely, when Playwright MCP is a better fit, and what to verify before merging.
- [Claude agent memory migration: prepare for the July 22 API behavior change.](https://indieseek.co/blogs/claude-agent-memory-july-22-migration-checklist/): Migrate Claude memory-store clients before July 22: replace beta headers, normalize path and depth, reset cursors, and test pagination safely.
- [Claude Code 2.1.216: test sandbox and worktree boundaries.](https://indieseek.co/blogs/claude-code-2-1-216-sandbox-worktree-security-checklist/): Upgrade Claude Code 2.1.216 safely with regression tests for filesystem exceptions, network egress, worktree redirects, symlink writes, and resumed agents.
- [Claude Code 2.1.217: cap subagent concurrency, depth, and spend.](https://indieseek.co/blogs/claude-code-2-1-217-subagent-concurrency-budget-checklist/): Control Claude Code subagents with concurrency, nesting, and budget limits, then verify the rollout with five safe tests, telemetry, and rollback gates.
- [Claude Code 2.1.221: mask credential files before sandboxed commands read them.](https://indieseek.co/blogs/claude-code-2-1-221-credential-file-masking-checklist/): Roll out Claude Code credential file masking on Linux and WSL2 with extract fail-closed rules, narrow injection hosts, disposable canaries, and platform gates.
- [Claude Code 2.1.223: verify the permission-bypass fixes before restoring autonomy.](https://indieseek.co/blogs/claude-code-2-1-223-permission-bypass-regression-checklist/): Upgrade Claude Code 2.1.223 safely with harmless Bash-parser, invisible-Unicode, agent-policy, and workflow-sandbox regression tests.
- [Claude Code 2.1.224 self-hosted environments: verify the trust boundary before rollout.](https://indieseek.co/blogs/claude-code-2-1-224-self-hosted-environments-rollout-checklist/): Roll out Claude Code self-hosted environments safely with a trust-boundary map, runner isolation, egress, identity, lifecycle, and E2E gates.
- [Claude Code 2.1.229: keep Vertex and Bedrock gateway streams alive.](https://indieseek.co/blogs/claude-code-2-1-229-gateway-stream-idle-timeout-checklist/): Verify Claude Code 2.1.229 SSE keepalives across Vertex AI or Amazon Bedrock gateways with a session-correlated canary, timeout classifier, and rollout record.
- [Claude Code 2.1.233 on Linux: cap Bash tool memory before a build stalls the host.](https://indieseek.co/blogs/claude-code-2-1-233-linux-bash-memory-limit-checklist/): Set CLAUDE_CODE_TOOL_MEMORY_LIMIT, verify cgroup membership and memory.max, run normal-build and disposable OOM canaries, and keep Linux host headroom.
- [Claude Code 2.1.234 security upgrade: test paths, marketplace hosts, and redaction before rollout.](https://indieseek.co/blogs/claude-code-2-1-234-security-upgrade-canary-checklist/): Upgrade Claude Code 2.1.234 with five payload-free canaries for NT paths, marketplace hosts, MCP redaction, permission previews, and subagent denies.
- [Claude Code 2.1.239: reconcile the US-only inference premium before trusting the budget cap.](https://indieseek.co/blogs/claude-code-2-1-239-us-only-inference-cost-checklist/): Verify Claude Code 2.1.239 US-only inference estimates across /cost, the status line, --max-budget-usd, API usage, and workspace geo controls.
- [Claude Code 2.1.245: recover from the Linux glibc 2.44 startup crash.](https://indieseek.co/blogs/claude-code-2-1-245-linux-glibc-2-44-startup-crash-fix/): Recover Claude Code on Arch, CachyOS, or Fedora Rawhide after the glibc 2.44 startup crash, then verify the binary, run six canaries, and keep rollback.
- [Claude Code 2.1.246: audit Bash wildcard rules before trusting Auto mode.](https://indieseek.co/blogs/claude-code-2-1-246-bash-wildcard-permission-audit/): Audit Claude Code Bash wildcard permissions after the 2.1.246 warning. Classify risky rules, narrow subcommands, add hooks and sandboxing, and run seven canaries.
- [Claude Code 2.1.248 restricted mode: shrink local authority without calling it a sandbox.](https://indieseek.co/blogs/claude-code-2-1-248-restricted-mode-security-checklist/): Use Claude Code 2.1.248 restricted mode with an explicit tool list, narrow file roots, strict MCP config, eight canaries, and a real OS boundary.
- [Claude Code 2.1.251 model-switch hooks: stop cache rebuilds from becoming surprise spend.](https://indieseek.co/blogs/claude-code-2-1-251-model-switch-cache-policy-checklist/): Use Claude Code 2.1.251 PreModelSwitch and PostModelSwitch hooks to govern model changes, expose cache rebuild estimates, and verify eight rollout canaries.
- [Claude Code 2.1.259 managed MCP servers: keep unattended headless runs fail-closed.](https://indieseek.co/blogs/claude-code-2-1-259-managed-mcp-headless-permission-checklist/): Roll out Claude Code 2.1.259 managed remote MCP servers and unattended headless permission handling with deny-first policy, canaries, rollback, and evidence.
- [Claude Code 2.1.266 gateway recovery: fix “Not signed in” without deleting valid API credentials](https://indieseek.co/blogs/claude-code-2-1-266-gateway-auth-regression-recovery-checklist/): Recover Claude Code 2.1.265 LLM gateway authentication failures by upgrading to 2.1.266, mapping credential precedence, and testing a safe canary.
- [Claude Code 2.1.268 security checklist: patch credential redaction and trust-boundary regressions](https://indieseek.co/blogs/claude-code-2-1-268-credential-redaction-trust-boundary-checklist/): Upgrade Claude Code 2.1.268, rotate credentials exposed in Git or MCP errors, and test agent trust, symlink denies, redaction, and rollback.
- [Claude Code 2.1.269 plugin eval: build a cost-bounded, reproducible acceptance suite](https://indieseek.co/blogs/claude-code-2-1-269-plugin-eval-cost-reproducibility-checklist/): Pin Claude Code 2.1.269, scaffold representative plugin cases, keep MCP mocked, cap spend, compare baselines, and archive JSON plus HTML acceptance evidence.
- [Claude Code 2.1.270 fixes read-only Git permission prompts: verify long-session recovery](https://indieseek.co/blogs/claude-code-2-1-270-read-only-git-permission-regression-checklist/): Pin Claude Code 2.1.270, reproduce the long-session permission regression, test read-only Git canaries, and prove mutating commands still require approval.
- [Claude Code 2.1.271 plugin command hashes: approve the command you actually reviewed](https://indieseek.co/blogs/claude-code-2-1-271-plugin-command-hash-acceptance-checklist/): Preview Claude Code plugin commands with JSON, review shownCommand.sha256, execute with --accept-command, and verify marketplace, scope, install, and runtime receipts.
- [Claude Code 2.1.276 fixes proxy 400 errors: recover custom gateways without hiding protocol drift](https://indieseek.co/blogs/claude-code-2-1-276-proxy-gateway-advisor-400-recovery-checklist/): Recover Claude Code custom gateways from the 2.1.275 advisor_20260301 400 regression with version proof, direct preflight, four canaries, and a staged rollout receipt.
- [Claude Code 2.1.278 auto mode: diagnose classifier billing fallback through a gateway](https://indieseek.co/blogs/claude-code-2-1-278-auto-mode-classifier-gateway-billing-checklist/): Check Claude Code 2.1.278 server-side auto-mode classification, diagnose gateway fallback and billed classifier requests, and validate policy boundaries with five canaries.
- [Claude Code 2.1.283 model allowlists: block surprise upgrades with exact matching](https://indieseek.co/blogs/claude-code-2-1-283-exact-model-allowlist-denylist-rollout-checklist/): Roll out Claude Code 2.1.283 exact model allowlists and deniedModels with managed settings, cross-surface canaries, receipts, and rollback gates.
- [Claude Code 2.1.286 resume recovery: verify parallel-tool transcripts before continuing](https://indieseek.co/blogs/claude-code-2-1-286-resume-parallel-tool-crash-recovery-checklist/): Recover Claude Code sessions safely after parallel tool crashes by validating transcripts, reconciling side effects, restoring launch flags, and forking evidence.
- [Claude Code 2.1.289 permission fixes: regression-test deny and ask rules before restoring auto-allow](https://indieseek.co/blogs/claude-code-2-1-289-permission-rule-regression-test-checklist/): Validate Claude Code 2.1.289 deny and ask fixes across compound commands, environment prefixes, symlinked IDE context, plugins, and sandbox boundaries.
- [Claude Code 2.1.292 security fixes: regression-test file-read boundaries before restoring auto mode](https://indieseek.co/blogs/claude-code-2-1-292-file-read-boundary-security-regression-checklist/): Validate Claude Code 2.1.292 against link-swap reads, UNC network paths, dynamic read-deny changes, managed policy cache tampering, and stale grants.
- [Claude Code 2.1.295 onFailure block: prove policy hooks fail closed without freezing work](https://indieseek.co/blogs/claude-code-2-1-295-hook-onfailure-block-fail-closed-rollout-checklist/): Roll out Claude Code 2.1.295 onFailure block with hook classification, six failure canaries, durable receipts, availability limits, and rollback.
- [Claude Code 2.1.296 529 retry delay: bound overload backoff before unattended rollout](https://indieseek.co/blogs/claude-code-2-1-296-529-overloaded-retry-backoff-runbook/): Configure Claude Code 2.1.296 overloaded retry delay with a whole-run deadline, one retry owner, overlap locks, six canaries, and effect receipts.
- [Claude Code 2.1.296 subagent auto-compaction: preserve evidence across smaller context windows](https://indieseek.co/blogs/claude-code-2-1-296-subagent-autocompact-context-handoff-checklist/): Roll out Claude Code 2.1.296 subagent autoCompactWindow with workload boundaries, evidence ledgers, controlled compaction canaries, and rollback gates.
- [Claude Code 2.1.227: restore Bash in Claude Code Action without dropping the sandbox.](https://indieseek.co/blogs/claude-code-action-2-1-227-bash-sandbox-fix-checklist/): Fix Claude Code Action Bash failures with allowed_non_write_users: verify CLI 2.1.227, retain subprocess isolation, and gate the recovery with six canaries.
- [Claude Code 2.1.219: lock sandbox network egress with a strict allowlist.](https://indieseek.co/blogs/claude-code-strict-network-allowlist-sandbox-checklist/): Use Claude Code 2.1.219 strict sandbox network allowlists safely: inventory hosts, test allow and deny paths, keep MCP separate, and run a reversible canary.
- [Claude Code verification: run /verify and /code-review explicitly.](https://indieseek.co/blogs/claude-code-verify-code-review-explicit-workflow/): Claude Code 2.1.215 stopped invoking /verify and /code-review automatically. Rebuild an explicit finish gate with tests, scoped review, and evidence.
- [Claude Compliance API exposes saved instructions: audit them without creating a second secret store](https://indieseek.co/blogs/claude-compliance-api-user-preferences-audit-rollout-checklist/): Audit Claude and Cowork saved instructions with least privilege, hash-first inventory, complete pagination, narrow plaintext review, and deletion evidence.
- [Claude Fable 5.1 in GitHub Copilot: verify retention, policy, and token cost before rollout.](https://indieseek.co/blogs/claude-fable-5-1-github-copilot-data-retention-pricing-rollout-checklist/): Roll out Claude Fable 5.1 in GitHub Copilot with the correct plan, admin policy, default data-retention boundary, eligible ZDR path, and per-token cost checks.
- [Claude Haiku 5.5 migration: recount tokens and parse adaptive thinking before switching traffic](https://indieseek.co/blogs/claude-haiku-5-5-adaptive-thinking-token-cost-migration-checklist/): Migrate to Claude Haiku 5.5 with measured token counts, long-context price tiers, adaptive-thinking parsing, shadow traffic, canaries, and rollback gates.
- [Claude Managed Agents session budgets: prove the hard stop before unattended runs.](https://indieseek.co/blogs/claude-managed-agents-session-budget-rollout-checklist/): Test Claude Managed Agents session budgets with list-cost sizing, budget_reached events, overshoot margins, resume rules, and deployment canaries.
- [Claude Opus 5.5 API migration: handle four breaking changes before switching model IDs](https://indieseek.co/blogs/claude-opus-5-5-api-breaking-changes-preserved-thinking-migration-checklist/): Migrate to Claude Opus 5.5 safely: fix thinking, forced-tool, preserved-thinking, computer-use, streaming, cost, and provider boundaries.
- [Claude Opus 5 in GitHub Copilot: a safe model rollout checklist.](https://indieseek.co/blogs/claude-opus-5-github-copilot-rollout-checklist/): Use Claude Opus 5 in GitHub Copilot without making it a default: verify access, select bounded repository tasks, compare evidence, cap the trial, and keep a rollback path.
- [Claude Sonnet 5.5 rollout: migrate thinking-off requests and route everyday work by accepted-result cost](https://indieseek.co/blogs/claude-sonnet-5-5-api-copilot-cost-routing-migration-checklist/): Migrate Claude Sonnet 5.5 across the API, Claude Code, and GitHub Copilot with a thinking-off request gate, effort-normalized canary, accepted-result cost, and rollback receipt.
- [Claude Workbench is now Playground: export saved prompts before September 1.](https://indieseek.co/blogs/claude-workbench-playground-export-migration-checklist/): Export Claude Workbench data before September 1, rebuild retired prompt-tool workflows, and verify prompts with a repository-owned golden replay.
- [Cloudflare Agents 0.20: migrate to MCP SDK v2 without breaking legacy clients.](https://indieseek.co/blogs/cloudflare-agents-0-20-mcp-sdk-v2-migration-checklist/): Migrate a Cloudflare Agents MCP server to SDK v2 with a stateless-first decision tree, exact package boundaries, dual-lane rollout, and eight canary checks.
- [Cloudflare Agents SDK + AI SDK v7: a safe package-pair migration checklist.](https://indieseek.co/blogs/cloudflare-agents-ai-sdk-v7-migration-checklist/): Upgrade Cloudflare Agents SDK to AI SDK v7 safely: preserve matching peer majors, test streaming and tools, use a canary, and retain a lockfile rollback.
- [Cloudflare Agents SDK 0.28 web_fetch: secure document retrieval before rollout](https://indieseek.co/blogs/cloudflare-agents-sdk-0-28-web-fetch-security-pagination-rollout-checklist/): Roll out Cloudflare Agents SDK web_fetch with host and redirect policies, prompt-injection isolation, pagination receipts, browser gates, and harmless canaries.
- [Cloudflare AI bot policies for indie sites.](https://indieseek.co/blogs/cloudflare-ai-bot-policies-indie-site-checklist/): A practical Cloudflare AI bot policy checklist for indie sites: keep Search crawlable, separate Agent and Training traffic, use AI Crawl Control, and avoid breaking Google AI search eligibility.
- [Cloudflare AI Gateway BYOK-only: stop silent Unified Billing fallback](https://indieseek.co/blogs/c

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