telegram-mcp-readonly
Read-only Telegram MCP server. Search chats, read messages, and download attachments from any MCP client.
Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.
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mshykhov
Source: github_repo_search
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Install from
The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.
XDG_STATE_HOMETELEGRAM_EVENT_FEEDTELEGRAM_READONLY_DOWNLOAD_DIRTELEGRAM_LINK_DOMAINGROQ_API_KEYTELEGRAM_API_IDTELEGRAM_API_HASHTELEGRAM_LOCK_GRACE_SECONDSTELEGRAM_SESSION_LOCKMCP_ALLOWED_HOSTSMCP_ALLOWED_ORIGINSMCP_HOSTMCP_PORTMCP_TRANSPORTTELEGRAM_EXPOSED_TOOLSTELEGRAM_FLOOD_SLEEP_THRESHOLDTELEGRAM_SESSION_STRINGSTELEGRAM_SESSION_STRINGTELEGRAM_SESSION_NAMETELEGRAM_CONTACT_FUZZYTELEGRAM_ALLOW_SERVER_ROOTS_FALLBACKXDG_DATA_HOMETELEGRAM_TRANSCRIBETELEGRAM_TRANSCRIBE_ENGINETELEGRAM_TRANSCRIBE_GROQ_MAX_MBTELEGRAM_TRANSCRIPT_CACHE_DIRTELEGRAM_TRANSCRIBE_MAX_VOICESTELEGRAM_TRANSCRIBE_MAX_SECONDSAll four hints declared on every tool
129/129 tools missing one or more hints — list_accounts (missing: destructiveHint, idempotentHint, openWorldHint); get_chats (missing: destructiveHint, idempotentHint); subscribe_public_channel (missing: readOnlyHint), +126 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.
For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.
Tool annotations match behaviour
1 read-only tool performs write/delete/exec — open_photo (line 737: kept_path.write_bytes(photo_bytes))
Either remove the readOnlyHint:true annotation, or remove the write/delete call from the tool handler.
Descriptions match behaviour
1 tool describes read intent but its handler mutates — open_photo (line 737: kept_path.write_bytes(photo_bytes))
Rename the tool, rewrite the description, or move the side-effect into a separate clearly-named tool.
Tool test coverage
60/129 tools referenced in tests (47%)
Write tests that reference each tool by name so every tool has at least one test.
Tool description accuracy
open_photo: description implies read-only but handler writes/deletes/executes
Update tool descriptions to accurately reflect all capabilities — especially write, delete, or execute operations.
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