io.github.shreyassaw5394/agent-theatre
NPM · AGENT-THEATRE
Watch your coding agent work as a film: opens and replays the Agent Theatre stage for a repo.
Available components
Last scanned (10 hours ago)
Scores higher than 87% of npm servers
Category Developer Tools
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
- 33 of 105 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency100
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Cryptographically verified build provenance (signed, bound to shreyassaw5394/agent-theatre). View diagnostics → Pass
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 0 days ago).Pass
- Publishes a security disclosure policy (SECURITY.md).Pass
Schema Quality & AI Usability73
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 430 tokens (~71/item across 6 items; 6 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management33
- Stability observed for 10 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage97
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 91% of tool parameters carry a description.Partial
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 6 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 6 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
Checks we ran (16)
- Malware scan
- Known CVEs
- Install scripts
- Dependency health
- Source repository
- Provenance
- License
- Maintenance
- Security disclosure
- Schema quality
- Stability
- Tool coverage
- Injection markers
- Destructive annotations
- Judged manipulation
- MCP protocol
Does not apply to this package (2)
- Endpoint SecurityScored on hosted endpoints only. A package has no live endpoint of its own for us to probe.
- Transport & ReachabilityScored on hosted endpoints only. A package has no live endpoint of its own for us to probe.
The score does not measure everything. What the score does not measure →
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.
- 4 Nov 26 +3
- Stability: 0.27 → unverified ▼ security
- Tool safety: pass → unverified ▼ security
- Schema quality: 63 → 71 ▼ functional
- Capabilities: pass → unverified ▼ functional
- Tool coverage: 100 → unverified ▼ functional
- Tool coverage: 27% → 91% ▲ functional
- First check of Schema quality: unverified functional
- Package version: 1.8.1 → 1.9.0 functional
- 3 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.
- 1 Nov 26 +12
- Known CVEs: unverified → pass ▲ security
- Dependency health: unverified → 0.86 ▲ functional
- Security disclosure: unverified → pass ▲ functional
- 31 Oct 26 +4
- Known CVEs: pass → unverified ▼ security
- Malware scan: unverified → pass ▲ security
- Dependency health: 0.86 → unverified ▼ functional
- Security disclosure: pass → unverified ▼ functional
- Package version: 1.6.1 → 1.8.1 functional
- Package version: 1.6.1 → 1.8.0 functional
- 30 Oct 26 −14
- Malware scan: pass → unverified ▼ security
- Schema quality: 55 → 63 ▼ functional
- Package version: 1.5.7 → 1.6.1 functional
- 28 Oct 26 +16
- Malware scan: unverified → pass ▲ security
- 27 Oct 26 +11
- Malware scan: unverified → pass ▲ security
- Known CVEs: unverified → pass ▲ security
- Stability: unverified → 0.03 ▲ functional
- Dependency health: unverified → 0.86 ▲ functional
- Security disclosure: fail → pass ▲ functional
- Package version: 1.5.5 → 1.5.7 functional
- 26 Oct 26 52
First indexed and scored.
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 5 Nov 2026 · Analysed npm/agent-theatre@1.9.0
Provenance Verified
A signed build attestation was found and verified, binding this exact artifact to the source repository it claims to come from.
| Result | Verified |
|---|---|
| Ecosystem | npm |
| Reason | Verified |
| Discovered via | Registry attestation endpoint |
| Source repo | shreyassaw5394/agent-theatre |
| Certificate issuer | https://token.actions.githubusercontent.com |
| Certificate SAN | https://github.com/shreyassaw5394/agent-theatre/.github/workflows/release.yml@refs/tags/v1.9.0 |
| Rekor log index | 3688985979 |
| Predicate type | SLSA build provenance https://slsa.dev/provenance/v1 |
| Subject digest | sha512:4be1641947238589547dfb0c1dacfade173cd3267c248b82cdcf1267034ef48230ebd8456f4833230b8b6f543ee3cd07664439efd246ee0ba18e7bef9 |
Background: How many MCP packages publish verified provenance →
Dependencies 105 packages
| Packages resolved | 105 |
|---|---|
| Stale | 33 |
| 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 →
install_hooks ~38
Install the Agent Theatre hooks into ~/.claude/settings.json (non-destructive, keeps a backup). Not needed when the Claude Code plugin is installed.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
list_sessions ~56
List past Claude Code sessions for a repository folder (newest first) that Agent Theatre can replay. Returns ids, titles and times only.
| Name | Type | Req | Description |
|---|---|---|---|
| cwd | string | – | Absolute path of the repository folder |
| limit | integer | – | – |
No output schema declared.
No examples provided.
open_stage ~86
Open the live Agent Theatre stage for a repository folder: the repo becomes a stage and the running Claude Code session animates on it. Returns the URL to open. Reuses a stage that is already running for that folder.
| Name | Type | Req | Description |
|---|---|---|---|
| cwd | string | – | Absolute path of the repository folder |
| set | string | – | Stage set id, e.g. island, orbit, lanterns |
No output schema declared.
No examples provided.
replay_session ~80
Open a replay of a past Claude Code session on the stage. Omit session_id for the newest. Returns the URL.
| Name | Type | Req | Description |
|---|---|---|---|
| cwd | string | – | Absolute path of the repository folder |
| session_id | string | – | A session id from list_sessions |
| set | string | – | Stage set id, e.g. island, orbit, lanterns |
No output schema declared.
No examples provided.
stage_status ~55
What the live stage for a folder has seen so far: event and beat counts, the last few event kinds, and whether hooks are installed. Never returns file contents.
| Name | Type | Req | Description |
|---|---|---|---|
| cwd | string | – | Absolute path of the repository folder |
No output schema declared.
No examples provided.
what_changed ~115
The change map: which files the agent read, edited, created or deleted (in the live stage for a folder, else the newest session), with line counts, files changed during the session but not by the agent, and a Markdown version for a pull request. Paths and counts only; never file contents.
| Name | Type | Req | Description |
|---|---|---|---|
| cwd | string | – | Absolute path of the repository folder |
| markdown | boolean | – | Return Markdown for a pull request instead of a plain list |
| session_id | string | – | A session id from list_sessions |
No output schema declared.
No examples provided.
How do I install the io.github.shreyassaw5394/agent-theatre MCP server?
io.github.shreyassaw5394/agent-theatre runs locally as an npm package, launched with npx -y agent-theatre serve. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · agent-theatre
claude mcp add shreyassaw5394-agent-theatre -- npx -y agent-theatre serve
What is the io.github.shreyassaw5394/agent-theatre MCP server?
io.github.shreyassaw5394/agent-theatre is an MCP server listed in the public MCP registry as io.github.shreyassaw5394/agent-theatre. Watch your coding agent work as a film: opens and replays the Agent Theatre stage for a repo. This page covers its npm package (agent-theatre).
Is the io.github.shreyassaw5394/agent-theatre MCP server safe to use?
io.github.shreyassaw5394/agent-theatre scores 85 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 5 November 2026. It declares no install or post-install scripts. Its build provenance is signed and verified. 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.shreyassaw5394/agent-theatre MCP server expose?
io.github.shreyassaw5394/agent-theatre exposes 6 tools: open_stage, list_sessions, replay_session, stage_status, what_changed, install_hooks. Their descriptions and schemas cost roughly 430 tokens of context every time the server is loaded.
Is the io.github.shreyassaw5394/agent-theatre MCP server still maintained?
io.github.shreyassaw5394/agent-theatre is still listed as active in the MCP registry. We last reached this channel on 5 November 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.shreyassaw5394/agent-theatre MCP server under?
io.github.shreyassaw5394/agent-theatre declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.
What did VerifyMCP test on the io.github.shreyassaw5394/agent-theatre MCP server?
VerifyMCP ran 16 checks on io.github.shreyassaw5394/agent-theatre, covering Malware scan, Known CVEs, Install scripts, Dependency health and 12 more. Endpoint Security and Transport & Reachability do not apply to an npm package, so they were not tested. The score does not measure everything, and the scoring documentation lists what it leaves out.