io.github.MukundaKatta/agentcast
NPM · @MUKUNDAKATTA/AGENTCAST-MCP · SCANNED SEP 21
Structured-output enforcer: extract and validate JSON from messy LLM text.
Available components
How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →
Supply Chain Security98
- No malware found by supply-chain analysis.Pass
- No known CVEs affecting this package version or its production dependencies.Pass
- No install/post-install scripts declared.Pass
- 31 of 96 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency45
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 147 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability80
- AI-judged instruction clarity (excellent).Pass
- Tool/resource definitions use about 310 tokens (~103/item across 3 items; 3 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
- No destabilizing schema changes in the last 30 days.Pass
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 3 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 3 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
How do I install the io.github.MukundaKatta/agentcast MCP server?
io.github.MukundaKatta/agentcast runs locally as an npm package, launched with npx -y @mukundakatta/agentcast-mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · @mukundakatta/agentcast-mcp
claude mcp add mukundakatta-agentcast -- npx -y @mukundakatta/agentcast-mcp
{
"mcpServers": {
"mukundakatta-agentcast": {
"command": "npx",
"args": [
"-y",
"@mukundakatta/agentcast-mcp"
]
}
}
} {
"servers": {
"mukundakatta-agentcast": {
"command": "npx",
"args": [
"-y",
"@mukundakatta/agentcast-mcp"
]
}
}
} codex mcp add mukundakatta-agentcast -- npx -y @mukundakatta/agentcast-mcp
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"mukundakatta-agentcast": {
"type": "local",
"command": [
"npx",
"-y",
"@mukundakatta/agentcast-mcp"
],
"enabled": true
}
}
} openclaw mcp add mukundakatta-agentcast --command npx --arg -y --arg @mukundakatta/agentcast-mcp
mcp_servers:
mukundakatta-agentcast:
command: "npx"
args: ["-y", "@mukundakatta/agentcast-mcp"] {
"McpServers": {
"mukundakatta-agentcast": {
"Transport": "stdio",
"Command": "npx",
"Arguments": [
"-y",
"@mukundakatta/agentcast-mcp"
]
}
}
} assistant mcp add mukundakatta-agentcast -t stdio -c npx -a -y @mukundakatta/agentcast-mcp
{
"mcpServers": {
"mukundakatta-agentcast": {
"command": "npx",
"args": [
"-y",
"@mukundakatta/agentcast-mcp"
]
}
}
} Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 21 Sept 26 +1
- Stability: 0.97 → pass security
- 19 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 90 to 93. That category is still filling its 30-day observation window: 27 days of observed history at the previous scan, 28 at this one. The score rises as the window fills, whether or not the server changes.
- 18 Sept 26 0
- Security disclosure: unverified → fail ▼ functional
- 17 Sept 26 +1
- Security disclosure: fail → unverified ▼ functional
- 15 Sept 26 −3
- Stability: pass → 0.80 functional
- 14 Sept 26 +1
- Stability: 0.97 → pass security
- 12 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 90 to 93. That category is still filling its 30-day observation window: 27 days of observed history at the previous scan, 28 at this one. The score rises as the window fills, whether or not the server changes.
- 10 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 83 to 87. That category is still filling its 30-day observation window: 25 days of observed history at the previous scan, 26 at this one. The score rises as the window fills, whether or not the server changes.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 21 Sept 2026 · Analysed npm/@mukundakatta/agentcast-mcp@0.1.0
Provenance No attestation
The registry publishes no build provenance for this version, so there is nothing to verify.
| Result | No attestation |
|---|---|
| Ecosystem | npm |
Background: How many MCP packages publish verified provenance →
Dependencies 96 packages
| Packages resolved | 96 |
|---|---|
| Stale | 31 |
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
build_retry_prompt ~100
Given an attempt history, produce the retry feedback message agentcast would append to the conversation when the model returned the wrong shape. Codifies the "validation error as feedback" pattern for non-Node MCP clients.
| Name | Type | Req | Description |
|---|---|---|---|
| attempts | array | yes | List of prior attempts. Each item should have the assistant text plus either a parsed value or an error string. |
| expected_shape | object | – | Optional agentcast shape spec to include in the feedback for extra grounding. |
No output schema declared.
No examples provided.
extract_json ~71
Pull a JSON value out of messy LLM output. Tries the whole text, then a fenced ```json``` block, then the largest balanced {...}/[...] substring. Returns the parsed value plus which strategy succeeded.
| Name | Type | Req | Description |
|---|---|---|---|
| text | string | yes | Free-form text from an LLM that may contain JSON anywhere inside. |
No output schema declared.
No examples provided.
validate_response ~139
Validate a parsed JSON value against an agentcast shape spec. Spec maps field name to type: 'string', 'number', 'boolean', 'array', 'object'. Suffix with '?' for optional. Returns valid=true on success, or valid=false with a human-readable error string suitable for retry feedback.
| Name | Type | Req | Description |
|---|---|---|---|
| shape | object | yes | Shape spec: { fieldName: 'string' | 'number' | 'boolean' | 'array' | 'object', ... }. Append '?' for optional fields, e.g. { name: 'string', age: 'number?' }. |
| value | – | yes | The parsed JSON value to validate (any shape). |
No output schema declared.
No examples provided.
What is the io.github.MukundaKatta/agentcast MCP server?
io.github.MukundaKatta/agentcast is an MCP server listed in the public MCP registry as io.github.MukundaKatta/agentcast. Structured-output enforcer: extract and validate JSON from messy LLM text. This page covers its npm package (@mukundakatta/agentcast-mcp).
Is the io.github.MukundaKatta/agentcast MCP server safe to use?
io.github.MukundaKatta/agentcast scores 85 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 21 September 2026. It declares no install or post-install scripts. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the io.github.MukundaKatta/agentcast MCP server expose?
io.github.MukundaKatta/agentcast exposes 3 tools: extract_json, validate_response, build_retry_prompt. Their descriptions and schemas cost roughly 310 tokens of context every time the server is loaded.
Is the io.github.MukundaKatta/agentcast MCP server still maintained?
io.github.MukundaKatta/agentcast is still listed as active in the MCP registry. We last reached this channel on 21 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.
What licence is the io.github.MukundaKatta/agentcast MCP server under?
io.github.MukundaKatta/agentcast declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.