PIO Agent MCP server

Read from the package source without running it. The installed server may list more.

• acquire_lock

  Explicitly claim the hardware queue lock for multi-step tasks. Throws if already held.

• agent_build_diagnosewrite action

  Runs build_project and returns rich structured diagnostics with error taxonomy, evidence, severity, retry-safety, and resource usage (RAM/Flash).

• agent_flash_monitor_verify

  Builds (optionally), flashes firmware with monitor restart, then verifies runtime serial output against expected/rejected patterns and stability criteria.

• agent_generate_board_report

  Generates a compact board intelligence report and caches it in .pio-mcp-workspace/boardReport.json.

• agent_get_last_report

  Returns the last persisted agent report from .pio-mcp-workspace/lastAgentReport.json.

• agent_monitor_health

  Resolves one device, performs a bounded serial capture, evaluates health markers, and persists change-only automation state when automationKey is provided.

• agent_resolve_target

  Resolves exactly one PlatformIO environment, board, and attached physical device. Returns ambiguity instead of guessing and issues a short-lived binding for write workflows.

• agent_safe_pin_audit

  Heuristic static pin audit for board-specific GPIO risks (ESP32 strapping/input-only/flash pins).

• agent_validate_project

  Agent-oriented pre-flight validation for a PlatformIO project. Reports environments, board IDs, source-file presence, config gaps, connected devices, and recommended next actions.

• build_project

  Compiles the project and generates the firmware binary via PlatformIO. PREFERRED over running `pio run` directly in a shell — this tool integrates with the hardware lock, the content-hash build cache (skips toolchain work when src/ is unchanged), and a structured-error parser that returns `structuredErrors` + `nextSteps` alongside the raw log. Returns immediately on a cache hit (no compilation). S

• cancel_taskwrite action

  Idempotently cancels one known background task and releases only resources proven to be owned by that task.

• capture_serial_window

  Acquires a bounded serial-monitor lease, captures redacted incremental output, and restores or releases resources on every exit path.

• check_project

  Static analysis validation.

• check_task_status

  Polls the status of an ongoing background task. Returns a JSON object where `status` indicates the success of the polling operation itself, and `targetStatus` (running, failed, completed) indicates the state of the actual background task.

• clean_projectwrite action

  Removes build artifacts and compiled files from the project.

• coredump

  Inspect an ESP core dump from a file or explicitly authorized device partition read, optionally analyzing it against an explicit ELF. Device reads can reset hardware and require separate device and host-command grants.

• decode_backtrace

  Decode crash addresses against the selected current or retained ELF. Requires build permission for metadata; does not prove flashed-device identity.

• deps_check

  Audit declared and installed project dependencies, with optional separately authorized build and LDF graph evidence.

• get_approval_request

  Reads one approval request and expiry without exposing approve or deny mutations to the agent.

• get_board_info

  Gets detailed information about a specific board including MCU, frequency, flash, RAM, and supported frameworks.

• get_dashboard_url

  Retrieves the address and auth token for the MCP Web Dashboard. Automatically starts the web server on demand if offline.

• get_lock_status

  Reveals who currently owns the hardware queue lock.

• get_monitor_status

  Reports active, inactive, or stale serial monitor state with a bounded incremental cursor.

• get_policy_status

  Returns the active policy profile and allowed/approval-required/denied operations.

• get_project_config

  Dumps platformio.ini JSON.

• get_project_context

  Returns a compact pre-flight snapshot of a PlatformIO project: declared environments, source files under src/, `lib_deps`, build-cache state, firmware artifact path, connected serial devices, and a `nextSteps` checklist. Call this FIRST when starting work on a project instead of issuing several read_file/list_devices/cat-log calls — it collapses that ritual into a single deterministic response. Pu

• init_project

  Initializes a new PlatformIO project with the specified board and optional framework. Creates project structure with src/, include/, lib/, and test/ directories.

• install_library

  Installs a library from the PlatformIO registry either globally or to a specific project. Supports version specification.

• list_boards

  Lists all available PlatformIO boards with optional filtering by platform, framework, or MCU. Supports 1000+ boards across 30+ platforms.

• list_devices

  Lists all connected serial devices that can be used for firmware upload and monitoring.

• list_installed_libraries

  Lists all installed libraries either globally or for a specific project.

• list_pending_approvals

  Lists pending project-scoped approval requests without exposing any approval mutation.

• list_targets

  List structured target metadata for selected or all environments. Requires build permission; does not execute the listed targets.

• list_task_history

  Returns compact project-scoped task history after reconciling stale tracked processes.

• partition_table

  Inspect ESP partition artifacts and firmware fit. Optional buildMetadata requires build permission and can execute project scripts. Optional readDevice resets/reads an explicitly selected serial device with separate permissions.

• pio_buildwrite action

  Run a fresh PlatformIO build with optional parallel jobs and compact diagnostics. Canonical build permissions apply.

• pio_checkwrite action

  Run static analysis with structured defects, source locations and CWE. Canonical check permissions apply.

• pio_clean

  Clean selected build artifacts, optionally including dependencies. Canonical destructive cleanup permission applies.

• pio_coredump

  Capture and save the selected ESP core-dump partition, optionally analyzing it against the matching project ELF. Configuration, metadata, device, export and analysis permissions remain separate.

• pio_debug_cmdwrite action

  Send a classified GDB/MI or console command to this connection's session. Inspection, target mutation and privileged host commands are authorized separately. Timeout does not halt a running target.

• pio_debug_list

  List this connection's debugger sessions, observed target state and pending cleanup. Does not enumerate another connection's sessions or contact hardware.

• pio_debug_stopwrite action

  Run the configured reset/run hook with host and target permissions, then close owned GDB/backend process groups and release probe custody. Set process_only for recovery without target commands; failed cleanup retains the session for retry.

• pio_decode_backtrace

  Decode supplied crash text or an owned monitor session against a verified ELF snapshot. Build metadata collection and serial reads retain separate canonical permissions.

• pio_deps_check

  Compatibility dependency audit using canonical permissions and optional authorized build evidence.

• pio_list_devices

  List serial device hints and caller-owned monitor sessions under canonical permissions.

• pio_partition_table

  Inspect the effective ESP partition layout and optionally compare a serial device. Build metadata and hardware access retain separate canonical permissions.

• pio_port_diagnose

  Inspect serial-port presence, permissions and observed holders without opening or closing the device. Missing holder evidence does not prove availability.

• pio_project_init

  Initialize a PlatformIO project with ordered options. Canonical initialization and configuration-read permissions apply before filesystem changes.

• pio_run_targetwrite action

  Run a named target through the canonical effect permissions and caller-owned serial lifecycle.

• pio_size_report

  Report ELF sections, largest symbols/files and partition-aware PlatformIO accounting under canonical build permissions. Static RAM excludes runtime heap and stack.

• pio_system_info

  Inspect PlatformIO Core, effective server policy and caller-owned monitors through canonical permissions.

• pio_testwrite action

  Run PlatformIO tests with per-case results. Embedded tests can upload and open hardware; canonical high-risk test permission applies. Build-only policy disables upload and test execution.

• pio_uploadwrite action

  Build and upload firmware through shared upload permissions and caller-owned serial cleanup.

• pkg_install

  Install a library, platform or tool in a project and save dependencies through PlatformIO.

• pkg_list

  List project packages and environments. Requires build permission because PlatformIO loads platform code.

• pkg_outdated

  Report outdated project packages. Requires build permission because PlatformIO loads platform code.

• pkg_search

  Search PlatformIO library, platform or tool registry packages by type and page.

• pkg_uninstallwrite action

  Remove a library, platform or tool from a project and its declared dependencies.

• pkg_updatewrite action

  Update project dependencies within declared version constraints, with retained output and configuration change hashes.

• project_envs

  List resolved project environments, inherited board/framework/port settings and configured defaults without running build scripts.

• project_metadata

  Generate bounded build metadata for selected or all environments. Requires build permission; may execute project scripts or install dependencies.

• query_logs

  Scans the latest active background serial trace spool, returning a filtered string block.

• release_lock

  Release the explicit queue lock matching your session ID.

• reset_server_state

  Forcefully cleans all server locks and terminates any tracked daemon or compilation PIDs globally or locally.

• run_targetwrite action

  Run a named PlatformIO target with effect-based permissions. Serial upload targets coordinate owned monitors and endpoint custody; network/probe destinations require their dedicated workflow.

• run_testswrite action

  Validates unit tests locally/remote.

• search_libraries

  Searches the PlatformIO library registry for available libraries by name, keywords, or description.

• size_report

  Report GNU symbols and PlatformIO memory accounting for one environment. Metadata and size checks require build permission and may execute project scripts.

• start_monitor

  Manually start or restart the background serial-to-disk spooler for a specific device.

• stop_monitorwrite action

  Kills the active background serial listener and unlocks the UART.

• system_info

  Gets sys diagnostic path output.

• uninstall_librarywrite action

  Removes target library.

• update_librarywrite action

  Upgrades library versions.

• upload_filesystemwrite action

  Builds and uploads a SPIFFS/LittleFS filesystem image to the connected device. PREFERRED over `pio run --target uploadfs` in a shell — same hardware-lock and port-auto-detect benefits as `upload_firmware`. Supports `start_monitor=true` to re-attach serial after upload.

• upload_firmwarewrite action

  Uploads compiled firmware to a connected device. PREFERRED over `pio run --target upload` in a shell — this tool routes through the hardware lock to serialize port access, auto-detects the port, and (with `start_monitor=true`) re-attaches the serial monitor after the device re-enumerates. Automatically rebuilds via `build_project` semantics if the cache is cold.

• Code scan556 source files scanned13/25
• –Live reliabilityno gateway calls yet and no remote to proben/a
• –Tool poisoningtools not inspected (local package is not executed); not countedn/a
• Auth qualitylocal package, no credentials required12/15
• Maintenancelast push 0 days ago15/15
• Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10

Safety score

74/100

higher than 43% of 4,460 AI and agents servers

Tools

75

the typical AI and agents server has 6

Tools that change things

25%

typical: 0%. Fewer write tools means less an agent can break

GitHub stars

51

more than 92% of 2,711 AI and agents servers

Downloads a week

131

more than 69% of 1,538 AI and agents servers with a package

PIO Agent: common questions

Is PIO Agent MCP server safe?

Mostly: it is graded B (74/100). Read the PIO Agent safety report

How do I install PIO Agent?

It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.

Does PIO Agent need an API key?

Not as far as the registry entry and our scan can tell: no credentials are declared or required.

Is PIO Agent maintained?

The last commit was 39 days ago (2026-09-25). The latest release is v3.1.0.

What can I use instead of PIO Agent?

Servers from other publishers that do the same job: agent-device MCP server and AKShare MCP server.

How does PIO Agent compare with other AI and agents MCP servers?

safety score 74/100 (higher than 43% of 4,460 AI and agents servers); tools 75 (the typical AI and agents server has 6); tools that change things 25% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.